61797058479 has 48 divisors (see below), whose sum is σ = 105293260800. Its totient is φ = 34557723648.

The previous prime is 61797058471. The next prime is 61797058487. The reversal of 61797058479 is 97485079716.

61797058479 is a `hidden beast` number, since 617 + 9 + 7 + 0 + 5 + 8 + 4 + 7 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (61797058471) and next prime (61797058487).

It is not a de Polignac number, because 61797058479 - 2³ = 61797058471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61797058471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 477999 + ... + 593360.

It is an arithmetic number, because the mean of its divisors is an integer number (2193609600).

Almost surely, 2^61797058479 is an apocalyptic number.

61797058479 is a deficient number, since it is larger than the sum of its proper divisors (43496202321).

61797058479 is a wasteful number, since it uses less digits than its factorization.

61797058479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071424 (or 1071421 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 63.

The spelling of 61797058479 in words is "sixty-one billion, seven hundred ninety-seven million, fifty-eight thousand, four hundred seventy-nine".