2131625958 has 64 divisors (see below), whose sum is σ = 5322129408. Its totient is φ = 552949920.

The previous prime is 2131625929. The next prime is 2131625963. The reversal of 2131625958 is 8595261312.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 416491 + ... + 421577.

It is an arithmetic number, because the mean of its divisors is an integer number (83158272).

Almost surely, 2^2131625958 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131625958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2661064704).

2131625958 is an abundant number, since it is smaller than the sum of its proper divisors (3190503450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131625958 is a wasteful number, since it uses less digits than its factorization.

2131625958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6017.

The product of its digits is 129600, while the sum is 42.

The square root of 2131625958 is about 46169.5349554227. The cubic root of 2131625958 is about 1286.9756601564.

It can be divided in two parts, 21316 and 25958, that added together give a palindrome (47274).

The spelling of 2131625958 in words is "two billion, one hundred thirty-one million, six hundred twenty-five thousand, nine hundred fifty-eight".