7748040838231 has 2 divisors, whose sum is σ = 7748040838232. Its totient is φ = 7748040838230.

The previous prime is 7748040838163. The next prime is 7748040838259. The reversal of 7748040838231 is 1328380408477.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7748040838231 - 2²⁵ = 7748007283799 is a prime.

It is a super-2 number, since 2×7748040838231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7748040838931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3874020419115 + 3874020419116.

It is an arithmetic number, because the mean of its divisors is an integer number (3874020419116).

Almost surely, 2^{7748040838231} is an apocalyptic number.

7748040838231 is a deficient number, since it is larger than the sum of its proper divisors (1).

7748040838231 is an equidigital number, since it uses as much as digits as its factorization.

7748040838231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7225344, while the sum is 55.

The spelling of 7748040838231 in words is "seven trillion, seven hundred forty-eight billion, forty million, eight hundred thirty-eight thousand, two hundred thirty-one".