2151426672 has 30 divisors (see below), whose sum is σ = 6021006992. Its totient is φ = 717142176.

The previous prime is 2151426659. The next prime is 2151426689. The reversal of 2151426672 is 2766241512.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7470088 + ... + 7470375.

Almost surely, 2^2151426672 is an apocalyptic number.

It is an amenable number.

2151426672 is an abundant number, since it is smaller than the sum of its proper divisors (3869580320).

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

2151426672 is a wasteful number, since it uses less digits than its factorization.

2151426672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14940477 (or 14940468 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 2151426672 is about 46383.4741260290. The cubic root of 2151426672 is about 1290.9482985741.

The spelling of 2151426672 in words is "two billion, one hundred fifty-one million, four hundred twenty-six thousand, six hundred seventy-two".