30640743486 has 48 divisors (see below), whose sum is σ = 67033053360. Its totient is φ = 10114540800.

The previous prime is 30640743467. The next prime is 30640743491. The reversal of 30640743486 is 68434704603.

It is a super-2 number, since 2×30640743486² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2640445 + ... + 2652023.

It is an arithmetic number, because the mean of its divisors is an integer number (1396521945).

Almost surely, 2^30640743486 is an apocalyptic number.

30640743486 is an abundant number, since it is smaller than the sum of its proper divisors (36392309874).

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

30640743486 is a wasteful number, since it uses less digits than its factorization.

30640743486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13001 (or 12998 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The spelling of 30640743486 in words is "thirty billion, six hundred forty million, seven hundred forty-three thousand, four hundred eighty-six".