61690579498285 has 16 divisors (see below), whose sum is σ = 75941099853696. Its totient is φ = 48083309322048.

The previous prime is 61690579498277. The next prime is 61690579498307. The reversal of 61690579498285 is 58289497509616.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 61690579498285 - 2³ = 61690579498277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 361291129 + ... + 361461838.

It is an arithmetic number, because the mean of its divisors is an integer number (4746318740856).

Almost surely, 2^{61690579498285} is an apocalyptic number.

It is an amenable number.

61690579498285 is a deficient number, since it is larger than the sum of its proper divisors (14250520355411).

61690579498285 is a wasteful number, since it uses less digits than its factorization.

61690579498285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722753412.

The product of its (nonzero) digits is 2351462400, while the sum is 79.

The spelling of 61690579498285 in words is "sixty-one trillion, six hundred ninety billion, five hundred seventy-nine million, four hundred ninety-eight thousand, two hundred eighty-five".