61454485710831 has 16 divisors (see below), whose sum is σ = 82100457402624. Its totient is φ = 40889163021504.

The previous prime is 61454485710811. The next prime is 61454485710869. The reversal of 61454485710831 is 13801758445416.

It is not a de Polignac number, because 61454485710831 - 2⁵ = 61454485710799 is a prime.

It is a super-2 number, since 2×61454485710831² (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 (61454485710811) 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, 6504601 + ... + 12853746.

It is an arithmetic number, because the mean of its divisors is an integer number (5131278587664).

Almost surely, 2^{61454485710831} is an apocalyptic number.

61454485710831 is a deficient number, since it is larger than the sum of its proper divisors (20645971691793).

61454485710831 is a wasteful number, since it uses less digits than its factorization.

61454485710831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19360430.

The product of its (nonzero) digits is 12902400, while the sum is 57.

The spelling of 61454485710831 in words is "sixty-one trillion, four hundred fifty-four billion, four hundred eighty-five million, seven hundred ten thousand, eight hundred thirty-one".