61473376306431 has 16 divisors (see below), whose sum is σ = 91407726430720. Its totient is φ = 40831024848120.

The previous prime is 61473376306393. The next prime is 61473376306487. The reversal of 61473376306431 is 13460367337416.

61473376306431 is a `hidden beast` number, since 6 + 147 + 3 + 3 + 7 + 63 + 0 + 6 + 431 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-61473376306431 is a prime.

It is a super-2 number, since 2×61473376306431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61473376306631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4200715405 + ... + 4200730038.

It is an arithmetic number, because the mean of its divisors is an integer number (5712982901920).

Almost surely, 2^{61473376306431} is an apocalyptic number.

61473376306431 is a deficient number, since it is larger than the sum of its proper divisors (29934350124289).

61473376306431 is a wasteful number, since it uses less digits than its factorization.

61473376306431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8401445723 (or 8401445717 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 54.

The spelling of 61473376306431 in words is "sixty-one trillion, four hundred seventy-three billion, three hundred seventy-six million, three hundred six thousand, four hundred thirty-one".