61001582913 has 24 divisors (see below), whose sum is σ = 92770966080. Its totient is φ = 38518999200.

The previous prime is 61001582869. The next prime is 61001582923. The reversal of 61001582913 is 31928510016.

61001582913 is a `hidden beast` number, since 61 + 0 + 0 + 1 + 582 + 9 + 13 = 666.

61001582913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61001582913 - 2¹⁰ = 61001581889 is a prime.

It is a super-2 number, since 2×61001582913² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61001582923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 810595 + ... + 882647.

It is an arithmetic number, because the mean of its divisors is an integer number (3865456920).

Almost surely, 2^61001582913 is an apocalyptic number.

It is an amenable number.

61001582913 is a deficient number, since it is larger than the sum of its proper divisors (31769383167).

61001582913 is a wasteful number, since it uses less digits than its factorization.

61001582913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77029 (or 77026 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The spelling of 61001582913 in words is "sixty-one billion, one million, five hundred eighty-two thousand, nine hundred thirteen".