61962659929 has 9 divisors (see below), whose sum is σ = 62291726847. Its totient is φ = 61635326184.

The previous prime is 61962659881. The next prime is 61962659977. The reversal of 61962659929 is 92995626916.

The square root of 61962659929 is 248923.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (61962659881) and next prime (61962659977).

It can be written as a sum of positive squares in only one way, i.e., 57709011529 + 4253648400 = 240227^2 + 65220^2 .

It is not a de Polignac number, because 61962659929 - 2¹⁵ = 61962627161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61962459929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 57002824 + ... + 57003910.

It is an arithmetic number, because the mean of its divisors is an integer number (6921302983).

Almost surely, 2^61962659929 is an apocalyptic number.

61962659929 is the 248923-rd square number.

61962659929 is the 124462-nd centered octagonal number.

It is an amenable number.

61962659929 is a deficient number, since it is larger than the sum of its proper divisors (329066918).

61962659929 is an frugal number, since it uses more digits than its factorization.

61962659929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632 (or 1316 counting only the distinct ones).

The product of its digits is 28343520, while the sum is 64.

Multiplying 61962659929 by its sum of digits (64), we get a square (3965610235456 = 1991384²).

The spelling of 61962659929 in words is "sixty-one billion, nine hundred sixty-two million, six hundred fifty-nine thousand, nine hundred twenty-nine".