30649023531 has 12 divisors (see below), whose sum is σ = 50595213552. Its totient is φ = 17513727696.

The previous prime is 30649023521. The next prime is 30649023533. The reversal of 30649023531 is 13532094603.

It is a happy number.

30649023531 is a `hidden beast` number, since 3 + 0 + 649 + 0 + 2 + 3 + 5 + 3 + 1 = 666.

It is not a de Polignac number, because 30649023531 - 2⁵ = 30649023499 is a prime.

It is a super-2 number, since 2×30649023531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30649023533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243246156 + ... + 243246281.

It is an arithmetic number, because the mean of its divisors is an integer number (4216267796).

Almost surely, 2^30649023531 is an apocalyptic number.

30649023531 is a deficient number, since it is larger than the sum of its proper divisors (19946190021).

30649023531 is a wasteful number, since it uses less digits than its factorization.

30649023531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486492450 (or 486492447 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The spelling of 30649023531 in words is "thirty billion, six hundred forty-nine million, twenty-three thousand, five hundred thirty-one".