7042377531 has 48 divisors (see below), whose sum is σ = 11373965568. Its totient is φ = 3796200000.

The previous prime is 7042377497. The next prime is 7042377541. The reversal of 7042377531 is 1357732407.

It is not a de Polignac number, because 7042377531 - 2⁹ = 7042377019 is a prime.

It is a super-2 number, since 2×7042377531² = 99190162578267311922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7042377531.

It is not an unprimeable number, because it can be changed into a prime (7042377541) 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 47 ways as a sum of consecutive naturals, for example, 1900981 + ... + 1904681.

It is an arithmetic number, because the mean of its divisors is an integer number (236957616).

Almost surely, 2^7042377531 is an apocalyptic number.

7042377531 is a deficient number, since it is larger than the sum of its proper divisors (4331588037).

7042377531 is a wasteful number, since it uses less digits than its factorization.

7042377531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000 (or 3981 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 39.

The square root of 7042377531 is about 83918.8747005106. The cubic root of 7042377531 is about 1916.7836713684.

The spelling of 7042377531 in words is "seven billion, forty-two million, three hundred seventy-seven thousand, five hundred thirty-one".