2620149888 has 64 divisors (see below), whose sum is σ = 7369189920. Its totient is φ = 822005760.

The previous prime is 2620149859. The next prime is 2620149901. The reversal of 2620149888 is 8889410262.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194158 + ... + 207213.

Almost surely, 2^2620149888 is an apocalyptic number.

It is an amenable number.

2620149888 is an abundant number, since it is smaller than the sum of its proper divisors (4749040032).

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

2620149888 is a wasteful number, since it uses less digits than its factorization.

2620149888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401405 (or 401393 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 2620149888 is about 51187.3996995354. The cubic root of 2620149888 is about 1378.6119713037.

The spelling of 2620149888 in words is "two billion, six hundred twenty million, one hundred forty-nine thousand, eight hundred eighty-eight".