61026536631 has 8 divisors (see below), whose sum is σ = 81839055600. Its totient is φ = 40449187712.

The previous prime is 61026536567. The next prime is 61026536653. The reversal of 61026536631 is 13663562016.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61026536631 - 2⁶ = 61026536567 is a prime.

It is a super-2 number, since 2×61026536631² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61026536631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61026536731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58791906 + ... + 58792943.

It is an arithmetic number, because the mean of its divisors is an integer number (10229881950).

Almost surely, 2^61026536631 is an apocalyptic number.

61026536631 is a deficient number, since it is larger than the sum of its proper divisors (20812518969).

61026536631 is a wasteful number, since it uses less digits than its factorization.

61026536631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117585025.

The product of its (nonzero) digits is 116640, while the sum is 39.

The spelling of 61026536631 in words is "sixty-one billion, twenty-six million, five hundred thirty-six thousand, six hundred thirty-one".