61929646250496 has 40 divisors (see below), whose sum is σ = 164984448218304. Its totient is φ = 20643215416320.

The previous prime is 61929646250491. The next prime is 61929646250503. The reversal of 61929646250496 is 69405264692916.

It is a self number, because there is not a number n which added to its sum of digits gives 61929646250496.

It is not an unprimeable number, because it can be changed into a prime (61929646250491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20159388520 + ... + 20159391591.

Almost surely, 2^{61929646250496} is an apocalyptic number.

It is an amenable number.

61929646250496 is an abundant number, since it is smaller than the sum of its proper divisors (103054801967808).

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

61929646250496 is an equidigital number, since it uses as much as digits as its factorization.

61929646250496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40318780132 (or 40318780116 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 69.

The spelling of 61929646250496 in words is "sixty-one trillion, nine hundred twenty-nine billion, six hundred forty-six million, two hundred fifty thousand, four hundred ninety-six".