30252646651 has 4 divisors (see below), whose sum is σ = 30896320032. Its totient is φ = 29608973272.

The previous prime is 30252646643. The next prime is 30252646673. The reversal of 30252646651 is 15664625203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15664625203 = 23 ⋅681070661.

It is a cyclic number.

It is not a de Polignac number, because 30252646651 - 2³ = 30252646643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30252646631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321836620 + ... + 321836713.

It is an arithmetic number, because the mean of its divisors is an integer number (7724080008).

Almost surely, 2^30252646651 is an apocalyptic number.

30252646651 is a deficient number, since it is larger than the sum of its proper divisors (643673381).

30252646651 is an equidigital number, since it uses as much as digits as its factorization.

30252646651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643673380.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 30252646651 in words is "thirty billion, two hundred fifty-two million, six hundred forty-six thousand, six hundred fifty-one".