42631949481 has 48 divisors (see below), whose sum is σ = 63071979264. Its totient is φ = 25593568000.

The previous prime is 42631949453. The next prime is 42631949537. The reversal of 42631949481 is 18494913624.

It is not a de Polignac number, because 42631949481 - 2⁵ = 42631949449 is a prime.

It is a super-2 number, since 2×42631949481² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42631949431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45304471 + ... + 45305411.

It is an arithmetic number, because the mean of its divisors is an integer number (1313999568).

Almost surely, 2^42631949481 is an apocalyptic number.

It is an amenable number.

42631949481 is a deficient number, since it is larger than the sum of its proper divisors (20440029783).

42631949481 is a wasteful number, since it uses less digits than its factorization.

42631949481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014 (or 2003 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 51.

It can be divided in two parts, 426319 and 49481, that added together give a triangular number (475800 = T₉₇₅).

The spelling of 42631949481 in words is "forty-two billion, six hundred thirty-one million, nine hundred forty-nine thousand, four hundred eighty-one".