61234304554431 has 12 divisors (see below), whose sum is σ = 88463215490208. Its totient is φ = 40816563025824.

The previous prime is 61234304554429. The next prime is 61234304554483. The reversal of 61234304554431 is 13445540343216.

61234304554431 is a `hidden beast` number, since 6 + 1 + 2 + 3 + 4 + 30 + 45 + 544 + 31 = 666.

It is not a de Polignac number, because 61234304554431 - 2¹ = 61234304554429 is a prime.

It is a super-2 number, since 2×61234304554431² (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 (61234304554331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 525494935 + ... + 525611448.

It is an arithmetic number, because the mean of its divisors is an integer number (7371934624184).

Almost surely, 2^{61234304554431} is an apocalyptic number.

61234304554431 is a deficient number, since it is larger than the sum of its proper divisors (27228910935777).

61234304554431 is a wasteful number, since it uses less digits than its factorization.

61234304554431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051112862 (or 1051112859 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

Adding to 61234304554431 its reverse (13445540343216), we get a palindrome (74679844897647).

The spelling of 61234304554431 in words is "sixty-one trillion, two hundred thirty-four billion, three hundred four million, five hundred fifty-four thousand, four hundred thirty-one".