30686075004 has 24 divisors (see below), whose sum is σ = 77108599120. Its totient is φ = 9441869184.

The previous prime is 30686074987. The next prime is 30686075009. The reversal of 30686075004 is 40057068603.

It is a super-2 number, since 2×30686075004² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30686075009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98352649 + ... + 98352960.

Almost surely, 2^30686075004 is an apocalyptic number.

It is an amenable number.

30686075004 is an abundant number, since it is smaller than the sum of its proper divisors (46422524116).

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

30686075004 is a wasteful number, since it uses less digits than its factorization.

30686075004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196705629 (or 196705627 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 30686075004 in words is "thirty billion, six hundred eighty-six million, seventy-five thousand, four".