61417640752431 has 32 divisors (see below), whose sum is σ = 82742678884800. Its totient is φ = 40519794723840.

The previous prime is 61417640752367. The next prime is 61417640752483. The reversal of 61417640752431 is 13425704671416.

It is not a de Polignac number, because 61417640752431 - 2⁶ = 61417640752367 is a prime.

It is a super-2 number, since 2×61417640752431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61417640752331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1072412665 + ... + 1072469933.

It is an arithmetic number, because the mean of its divisors is an integer number (2585708715150).

Almost surely, 2^{61417640752431} is an apocalyptic number.

61417640752431 is a deficient number, since it is larger than the sum of its proper divisors (21325038132369).

61417640752431 is a wasteful number, since it uses less digits than its factorization.

61417640752431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61339.

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 61417640752431 in words is "sixty-one trillion, four hundred seventeen billion, six hundred forty million, seven hundred fifty-two thousand, four hundred thirty-one".