80357499437 has 2 divisors, whose sum is σ = 80357499438. Its totient is φ = 80357499436.

The previous prime is 80357499373. The next prime is 80357499487. The reversal of 80357499437 is 73499475308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66794334916 + 13563164521 = 258446^2 + 116461^2 .

It is a cyclic number.

It is not a de Polignac number, because 80357499437 - 2⁶ = 80357499373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80357499487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40178749718 + 40178749719.

It is an arithmetic number, because the mean of its divisors is an integer number (40178749719).

Almost surely, 2^80357499437 is an apocalyptic number.

It is an amenable number.

80357499437 is a deficient number, since it is larger than the sum of its proper divisors (1).

80357499437 is an equidigital number, since it uses as much as digits as its factorization.

80357499437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22861440, while the sum is 59.

The spelling of 80357499437 in words is "eighty billion, three hundred fifty-seven million, four hundred ninety-nine thousand, four hundred thirty-seven".