157190445889 has 8 divisors (see below), whose sum is σ = 166544418600. Its totient is φ = 147848414976.

The previous prime is 157190445877. The next prime is 157190445901. The reversal of 157190445889 is 988544091751.

It is an interprime number because it is at equal distance from previous prime (157190445877) and next prime (157190445901).

It can be written as a sum of positive squares in 4 ways, for example, as 5532384400 + 151658061489 = 74380^2 + 389433^2 .

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 157190445889 - 2¹³ = 157190437697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157190445589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2958334 + ... + 3010999.

It is an arithmetic number, because the mean of its divisors is an integer number (20818052325).

Almost surely, 2^157190445889 is an apocalyptic number.

It is an amenable number.

157190445889 is a deficient number, since it is larger than the sum of its proper divisors (9353972711).

157190445889 is a wasteful number, since it uses less digits than its factorization.

157190445889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5970899.

The product of its (nonzero) digits is 14515200, while the sum is 61.

The spelling of 157190445889 in words is "one hundred fifty-seven billion, one hundred ninety million, four hundred forty-five thousand, eight hundred eighty-nine".