61254166931 has 8 divisors (see below), whose sum is σ = 62262514944. Its totient is φ = 60245953920.

The previous prime is 61254166891. The next prime is 61254166951. The reversal of 61254166931 is 13966145216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61254166931 is a prime.

It is a super-2 number, since 2×61254166931² (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 (61254166951) 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, 1331150 + ... + 1376396.

It is an arithmetic number, because the mean of its divisors is an integer number (7782814368).

Almost surely, 2^61254166931 is an apocalyptic number.

61254166931 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

61254166931 is a deficient number, since it is larger than the sum of its proper divisors (1008348013).

61254166931 is a wasteful number, since it uses less digits than its factorization.

61254166931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67501.

The product of its digits is 233280, while the sum is 44.

The spelling of 61254166931 in words is "sixty-one billion, two hundred fifty-four million, one hundred sixty-six thousand, nine hundred thirty-one".