49451038375597 has 2 divisors, whose sum is σ = 49451038375598. Its totient is φ = 49451038375596.

The previous prime is 49451038375589. The next prime is 49451038375619. The reversal of 49451038375597 is 79557383015494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39040678048516 + 10410360327081 = 6248254^2 + 3226509^2 .

It is a cyclic number.

It is not a de Polignac number, because 49451038375597 - 2³ = 49451038375589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49451038375507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24725519187798 + 24725519187799.

It is an arithmetic number, because the mean of its divisors is an integer number (24725519187799).

Almost surely, 2^{49451038375597} is an apocalyptic number.

It is an amenable number.

49451038375597 is a deficient number, since it is larger than the sum of its proper divisors (1).

49451038375597 is an equidigital number, since it uses as much as digits as its factorization.

49451038375597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 571536000, while the sum is 70.

The spelling of 49451038375597 in words is "forty-nine trillion, four hundred fifty-one billion, thirty-eight million, three hundred seventy-five thousand, five hundred ninety-seven".