61690579498296 has 384 divisors, whose sum is σ = 196633906560000. Its totient is φ = 17109449109504.

The previous prime is 61690579498277. The next prime is 61690579498307. The reversal of 61690579498296 is 69289497509616.

61690579498296 is a `hidden beast` number, since 6 + 16 + 9 + 0 + 579 + 4 + 9 + 8 + 29 + 6 = 666.

61690579498296 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 1068891136 + ... + 1068948848.

It is an arithmetic number, because the mean of its divisors is an integer number (512067465000).

Almost surely, 2^{61690579498296} 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 61690579498296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98316953280000).

61690579498296 is an abundant number, since it is smaller than the sum of its proper divisors (134943327061704).

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

61690579498296 is a wasteful number, since it uses less digits than its factorization.

61690579498296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58243 (or 58236 counting only the distinct ones).

The product of its (nonzero) digits is 3174474240, while the sum is 81.

The spelling of 61690579498296 in words is "sixty-one trillion, six hundred ninety billion, five hundred seventy-nine million, four hundred ninety-eight thousand, two hundred ninety-six".