61624242610531 has 8 divisors (see below), whose sum is σ = 62245872073584. Its totient is φ = 61003459480320.

The previous prime is 61624242610487. The next prime is 61624242610573. The reversal of 61624242610531 is 13501624242616.

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-61624242610531 is a prime.

It is a super-2 number, since 2×61624242610531² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61624242610591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211436850 + ... + 211728103.

It is an arithmetic number, because the mean of its divisors is an integer number (7780734009198).

Almost surely, 2^{61624242610531} is an apocalyptic number.

61624242610531 is a deficient number, since it is larger than the sum of its proper divisors (621629463053).

61624242610531 is a wasteful number, since it uses less digits than its factorization.

61624242610531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423166421.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 61624242610531 in words is "sixty-one trillion, six hundred twenty-four billion, two hundred forty-two million, six hundred ten thousand, five hundred thirty-one".