61037472331 has 4 divisors (see below), whose sum is σ = 66586333464. Its totient is φ = 55488611200.

The previous prime is 61037472319. The next prime is 61037472337. The reversal of 61037472331 is 13327473016.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61037472331 - 2²³ = 61029083723 is a prime.

It is a super-2 number, since 2×61037472331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61037472337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2774430550 + ... + 2774430571.

It is an arithmetic number, because the mean of its divisors is an integer number (16646583366).

Almost surely, 2^61037472331 is an apocalyptic number.

61037472331 is a deficient number, since it is larger than the sum of its proper divisors (5548861133).

61037472331 is a wasteful number, since it uses less digits than its factorization.

61037472331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5548861132.

The product of its (nonzero) digits is 63504, while the sum is 37.

The spelling of 61037472331 in words is "sixty-one billion, thirty-seven million, four hundred seventy-two thousand, three hundred thirty-one".