61690573323926 has 16 divisors (see below), whose sum is σ = 92794293619200. Its totient is φ = 30759143365608.

The previous prime is 61690573323893. The next prime is 61690573323931. The reversal of 61690573323926 is 62932337509616.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147284585 + ... + 147702843.

It is an arithmetic number, because the mean of its divisors is an integer number (5799643351200).

Almost surely, 2^{61690573323926} is an apocalyptic number.

61690573323926 is a deficient number, since it is larger than the sum of its proper divisors (31103720295274).

61690573323926 is a wasteful number, since it uses less digits than its factorization.

61690573323926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624043.

The product of its (nonzero) digits is 66134880, while the sum is 62.

The spelling of 61690573323926 in words is "sixty-one trillion, six hundred ninety billion, five hundred seventy-three million, three hundred twenty-three thousand, nine hundred twenty-six".