42780013124 has 12 divisors (see below), whose sum is σ = 75028844604. Its totient is φ = 21343200384.

The previous prime is 42780013097. The next prime is 42780013147. The reversal of 42780013124 is 42131008724.

42780013124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 36832518724 + 5947494400 = 191918^2 + 77120^2 .

It is a super-2 number, since 2×42780013124² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11699489 + ... + 11703144.

It is an arithmetic number, because the mean of its divisors is an integer number (6252403717).

Almost surely, 2^42780013124 is an apocalyptic number.

It is an amenable number.

42780013124 is a deficient number, since it is larger than the sum of its proper divisors (32248831480).

42780013124 is a wasteful number, since it uses less digits than its factorization.

42780013124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23403094 (or 23403092 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 42780013124 in words is "forty-two billion, seven hundred eighty million, thirteen thousand, one hundred twenty-four".