398535020157 has 16 divisors (see below), whose sum is σ = 546476273280. Its totient is φ = 258161222592.

The previous prime is 398535020153. The next prime is 398535020159. The reversal of 398535020157 is 751020535893.

It is not a de Polignac number, because 398535020157 - 2² = 398535020153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398535020153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2333682 + ... + 2498627.

It is an arithmetic number, because the mean of its divisors is an integer number (34154767080).

Almost surely, 2^398535020157 is an apocalyptic number.

398535020157 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

398535020157 is a deficient number, since it is larger than the sum of its proper divisors (147941253123).

398535020157 is a wasteful number, since it uses less digits than its factorization.

398535020157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833092.

The product of its (nonzero) digits is 1134000, while the sum is 48.

The spelling of 398535020157 in words is "three hundred ninety-eight billion, five hundred thirty-five million, twenty thousand, one hundred fifty-seven".