61702926252 has 96 divisors (see below), whose sum is σ = 164502213120. Its totient is φ = 17818183680.

The previous prime is 61702926217. The next prime is 61702926253. The reversal of 61702926252 is 25262920716.

It is a super-2 number, since 2×61702926252² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61702926253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 778908 + ... + 854460.

It is an arithmetic number, because the mean of its divisors is an integer number (1713564720).

Almost surely, 2^61702926252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61702926252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82251106560).

61702926252 is an abundant number, since it is smaller than the sum of its proper divisors (102799286868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61702926252 is a wasteful number, since it uses less digits than its factorization.

61702926252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75863 (or 75861 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 61702926252 in words is "sixty-one billion, seven hundred two million, nine hundred twenty-six thousand, two hundred fifty-two".