30649815440398 has 48 divisors (see below), whose sum is σ = 57754579986432. Its totient is φ = 11941236608400.

The previous prime is 30649815440381. The next prime is 30649815440417. The reversal of 30649815440398 is 89304451894603.

It is a super-2 number, since 2×30649815440398² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94850083 + ... + 95172673.

It is an arithmetic number, because the mean of its divisors is an integer number (1203220416384).

Almost surely, 2^{30649815440398} is an apocalyptic number.

30649815440398 is a deficient number, since it is larger than the sum of its proper divisors (27104764546034).

30649815440398 is a wasteful number, since it uses less digits than its factorization.

30649815440398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378709 (or 378698 counting only the distinct ones).

The product of its (nonzero) digits is 89579520, while the sum is 64.

The spelling of 30649815440398 in words is "thirty trillion, six hundred forty-nine billion, eight hundred fifteen million, four hundred forty thousand, three hundred ninety-eight".