61474814846431 has 8 divisors (see below), whose sum is σ = 70505188962944. Its totient is φ = 52506505157400.

The previous prime is 61474814846407. The next prime is 61474814846477. The reversal of 61474814846431 is 13464841847416.

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

It is not a de Polignac number, because 61474814846431 - 2⁹ = 61474814845919 is a prime.

It is a super-2 number, since 2×61474814846431² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61474814846431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61474814846831) 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, 15516104745 + ... + 15516108706.

It is an arithmetic number, because the mean of its divisors is an integer number (8813148620368).

Almost surely, 2^{61474814846431} is an apocalyptic number.

61474814846431 is a deficient number, since it is larger than the sum of its proper divisors (9030374116513).

61474814846431 is a wasteful number, since it uses less digits than its factorization.

61474814846431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31032213741.

The product of its digits is 49545216, while the sum is 61.

The spelling of 61474814846431 in words is "sixty-one trillion, four hundred seventy-four billion, eight hundred fourteen million, eight hundred forty-six thousand, four hundred thirty-one".