60921593329 has 9 divisors (see below), whose sum is σ = 64720475467. Its totient is φ = 57334021024.

The previous prime is 60921593303. The next prime is 60921593339. The reversal of 60921593329 is 92339512906.

It is a happy number.

The square root of 60921593329 is 246823.

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

It can be written as a sum of positive squares in only one way, i.e., 47430306225 + 13491287104 = 217785^2 + 116152^2 .

It is not a de Polignac number, because 60921593329 - 2⁹ = 60921592817 is a prime.

It is a super-2 number, since 2×60921593329² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60921593339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4188732 + ... + 4203250.

Almost surely, 2^60921593329 is an apocalyptic number.

60921593329 is the 246823-rd square number.

60921593329 is the 123412-nd centered octagonal number.

It is an amenable number.

60921593329 is a deficient number, since it is larger than the sum of its proper divisors (3798882138).

60921593329 is an frugal number, since it uses more digits than its factorization.

60921593329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29072 (or 14536 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 49.

Multiplying 60921593329 by its sum of digits (49), we get a square (2985158073121 = 1727761²).

The spelling of 60921593329 in words is "sixty billion, nine hundred twenty-one million, five hundred ninety-three thousand, three hundred twenty-nine".