157795064446989 has 8 divisors (see below), whose sum is σ = 212928279736032. Its totient is φ = 103929279394640.

The previous prime is 157795064446931. The next prime is 157795064447093. The reversal of 157795064446989 is 989644460597751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157795064446989 - 2⁹ = 157795064446477 is a prime.

It is a super-2 number, since 2×157795064446989² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157795064446909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316857558882 + ... + 316857559379.

It is an arithmetic number, because the mean of its divisors is an integer number (26616034967004).

Almost surely, 2^{157795064446989} is an apocalyptic number.

It is an amenable number.

157795064446989 is a deficient number, since it is larger than the sum of its proper divisors (55133215289043).

157795064446989 is an equidigital number, since it uses as much as digits as its factorization.

157795064446989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633715118347.

The product of its (nonzero) digits is 16460236800, while the sum is 84.

The spelling of 157795064446989 in words is "one hundred fifty-seven trillion, seven hundred ninety-five billion, sixty-four million, four hundred forty-six thousand, nine hundred eighty-nine".