7381623631 has 4 divisors (see below), whose sum is σ = 7422406264. Its totient is φ = 7340841000.

The previous prime is 7381623607. The next prime is 7381623637. The reversal of 7381623631 is 1363261837.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7381623631 - 2⁷ = 7381623503 is a prime.

It is a super-2 number, since 2×7381623631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7381623637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20391045 + ... + 20391406.

It is an arithmetic number, because the mean of its divisors is an integer number (1855601566).

Almost surely, 2^7381623631 is an apocalyptic number.

7381623631 is a deficient number, since it is larger than the sum of its proper divisors (40782633).

7381623631 is a wasteful number, since it uses less digits than its factorization.

7381623631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40782632.

The product of its digits is 108864, while the sum is 40.

The square root of 7381623631 is about 85916.3758022881. The cubic root of 7381623631 is about 1947.0807628750.

The spelling of 7381623631 in words is "seven billion, three hundred eighty-one million, six hundred twenty-three thousand, six hundred thirty-one".