61213732276 has 12 divisors (see below), whose sum is σ = 107128935172. Its totient is φ = 30605465088.

The previous prime is 61213732271. The next prime is 61213732291. The reversal of 61213732276 is 67223731216.

It can be written as a sum of positive squares in 2 ways, for example, as 10532916900 + 50680815376 = 102630^2 + 225124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61213732271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248685 + ... + 429268.

Almost surely, 2^61213732276 is an apocalyptic number.

It is an amenable number.

61213732276 is a deficient number, since it is larger than the sum of its proper divisors (45915202896).

61213732276 is a wasteful number, since it uses less digits than its factorization.

61213732276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700530 (or 700528 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The spelling of 61213732276 in words is "sixty-one billion, two hundred thirteen million, seven hundred thirty-two thousand, two hundred seventy-six".