1598628821381 has 16 divisors (see below), whose sum is σ = 1698197529600. Its totient is φ = 1499679202560.

The previous prime is 1598628821369. The next prime is 1598628821389. The reversal of 1598628821381 is 1831288268951.

It is not a de Polignac number, because 1598628821381 - 2²² = 1598624627077 is a prime.

It is a super-2 number, since 2×1598628821381² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1598628821389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11604695 + ... + 11741643.

It is an arithmetic number, because the mean of its divisors is an integer number (106137345600).

Almost surely, 2^{1598628821381} is an apocalyptic number.

It is an amenable number.

1598628821381 is a deficient number, since it is larger than the sum of its proper divisors (99568708219).

1598628821381 is a wasteful number, since it uses less digits than its factorization.

1598628821381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139204.

The product of its digits is 13271040, while the sum is 62.

The spelling of 1598628821381 in words is "one trillion, five hundred ninety-eight billion, six hundred twenty-eight million, eight hundred twenty-one thousand, three hundred eighty-one".