157753371402989 has 2 divisors, whose sum is σ = 157753371402990. Its totient is φ = 157753371402988.

The previous prime is 157753371402983. The next prime is 157753371403003. The reversal of 157753371402989 is 989204173357751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129439883437225 + 28313487965764 = 11377165^2 + 5321042^2 .

It is a cyclic number.

It is not a de Polignac number, because 157753371402989 - 2⁸ = 157753371402733 is a prime.

It is a super-2 number, since 2×157753371402989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157753371402983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78876685701494 + 78876685701495.

It is an arithmetic number, because the mean of its divisors is an integer number (78876685701495).

Almost surely, 2^{157753371402989} is an apocalyptic number.

It is an amenable number.

157753371402989 is a deficient number, since it is larger than the sum of its proper divisors (1).

157753371402989 is an equidigital number, since it uses as much as digits as its factorization.

157753371402989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 400075200, while the sum is 71.

The spelling of 157753371402989 in words is "one hundred fifty-seven trillion, seven hundred fifty-three billion, three hundred seventy-one million, four hundred two thousand, nine hundred eighty-nine".