61459231544990 has 32 divisors (see below), whose sum is σ = 114231949643520. Its totient is φ = 23783017708800.

The previous prime is 61459231544939. The next prime is 61459231545007. The reversal of 61459231544990 is 9944513295416.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (62).

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, 30920351 + ... + 32847930.

It is an arithmetic number, because the mean of its divisors is an integer number (3569748426360).

Almost surely, 2^{61459231544990} is an apocalyptic number.

61459231544990 is a deficient number, since it is larger than the sum of its proper divisors (52772718098530).

61459231544990 is a wasteful number, since it uses less digits than its factorization.

61459231544990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63771428.

The product of its (nonzero) digits is 41990400, while the sum is 62.

The spelling of 61459231544990 in words is "sixty-one trillion, four hundred fifty-nine billion, two hundred thirty-one million, five hundred forty-four thousand, nine hundred ninety".