61254342545931 has 16 divisors (see below), whose sum is σ = 90751475596320. Its totient is φ = 40834292709600.

The previous prime is 61254342545917. The next prime is 61254342545941. The reversal of 61254342545931 is 13954524345216.

61254342545931 is a `hidden beast` number, since 6 + 1 + 2 + 5 + 4 + 3 + 4 + 2 + 545 + 93 + 1 = 666.

61254342545931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61254342545931 - 2⁶ = 61254342545867 is a prime.

It is a super-2 number, since 2×61254342545931² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61254342545941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53187900 + ... + 54327353.

It is an arithmetic number, because the mean of its divisors is an integer number (5671967224770).

Almost surely, 2^{61254342545931} is an apocalyptic number.

61254342545931 is a deficient number, since it is larger than the sum of its proper divisors (29497133050389).

61254342545931 is a wasteful number, since it uses less digits than its factorization.

61254342545931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107536363 (or 107536357 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 54.

The spelling of 61254342545931 in words is "sixty-one trillion, two hundred fifty-four billion, three hundred forty-two million, five hundred forty-five thousand, nine hundred thirty-one".