61457200631 has 8 divisors (see below), whose sum is σ = 61653196800. Its totient is φ = 61261267320.

The previous prime is 61457200621. The next prime is 61457200663. The reversal of 61457200631 is 13600275416.

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 61457200631 - 2²² = 61453006327 is a prime.

It is a super-2 number, since 2×61457200631² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61457200591 and 61457200600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61457200621) 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, 2656010 + ... + 2679048.

It is an arithmetic number, because the mean of its divisors is an integer number (7706649600).

Almost surely, 2^61457200631 is an apocalyptic number.

61457200631 is a deficient number, since it is larger than the sum of its proper divisors (195996169).

61457200631 is a wasteful number, since it uses less digits than its factorization.

61457200631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31429.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 61457200631 in words is "sixty-one billion, four hundred fifty-seven million, two hundred thousand, six hundred thirty-one".