7497428938 has 8 divisors (see below), whose sum is σ = 11400200388. Its totient is φ = 3697362144.

The previous prime is 7497428929. The next prime is 7497428941. The reversal of 7497428938 is 8398247947.

It can be written as a sum of positive squares in 2 ways, for example, as 7493845489 + 3583449 = 86567^2 + 1893^2 .

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

It is a super-2 number, since 2×7497428938² (a number of 21 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, 25675981 + ... + 25676272.

Almost surely, 2^7497428938 is an apocalyptic number.

7497428938 is a deficient number, since it is larger than the sum of its proper divisors (3902771450).

7497428938 is a wasteful number, since it uses less digits than its factorization.

7497428938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51352328.

The product of its digits is 24385536, while the sum is 61.

The square root of 7497428938 is about 86587.6950726834. The cubic root of 7497428938 is about 1957.2101201887.

The spelling of 7497428938 in words is "seven billion, four hundred ninety-seven million, four hundred twenty-eight thousand, nine hundred thirty-eight".