30440812461 has 4 divisors (see below), whose sum is σ = 40587749952. Its totient is φ = 20293874972.

The previous prime is 30440812439. The next prime is 30440812469. The reversal of 30440812461 is 16421804403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30440812461 - 2¹⁸ = 30440550317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30440812469) 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, 5073468741 + ... + 5073468746.

It is an arithmetic number, because the mean of its divisors is an integer number (10146937488).

Almost surely, 2^30440812461 is an apocalyptic number.

It is an amenable number.

30440812461 is a deficient number, since it is larger than the sum of its proper divisors (10146937491).

30440812461 is a wasteful number, since it uses less digits than its factorization.

30440812461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10146937490.

The product of its (nonzero) digits is 18432, while the sum is 33.

The spelling of 30440812461 in words is "thirty billion, four hundred forty million, eight hundred twelve thousand, four hundred sixty-one".