61797058480 has 40 divisors (see below), whose sum is σ = 144063426672. Its totient is φ = 24652541184.

The previous prime is 61797058471. The next prime is 61797058487. The reversal of 61797058480 is 8485079716.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (61797058487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005634 + ... + 1065313.

Almost surely, 2^61797058480 is an apocalyptic number.

It is an amenable number.

61797058480 is an abundant number, since it is smaller than the sum of its proper divisors (82266368192).

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

61797058480 is a wasteful number, since it uses less digits than its factorization.

61797058480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2071333 (or 2071327 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 61797058480 in words is "sixty-one billion, seven hundred ninety-seven million, fifty-eight thousand, four hundred eighty".