7938049531 has 2 divisors, whose sum is σ = 7938049532. Its totient is φ = 7938049530.

The previous prime is 7938049519. The next prime is 7938049541. The reversal of 7938049531 is 1359408397.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7938049531 - 2⁷ = 7938049403 is a prime.

It is a super-2 number, since 2×7938049531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7938049541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3969024765 + 3969024766.

It is an arithmetic number, because the mean of its divisors is an integer number (3969024766).

Almost surely, 2^7938049531 is an apocalyptic number.

7938049531 is a deficient number, since it is larger than the sum of its proper divisors (1).

7938049531 is an equidigital number, since it uses as much as digits as its factorization.

7938049531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 49.

The square root of 7938049531 is about 89095.7323949918. The cubic root of 7938049531 is about 1994.8240773845.

The spelling of 7938049531 in words is "seven billion, nine hundred thirty-eight million, forty-nine thousand, five hundred thirty-one".