30072749407 has 4 divisors (see below), whose sum is σ = 30885526456. Its totient is φ = 29259972360.

The previous prime is 30072749401. The next prime is 30072749419. The reversal of 30072749407 is 70494727003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30072749407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30072749401) 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, 406388469 + ... + 406388542.

It is an arithmetic number, because the mean of its divisors is an integer number (7721381614).

Almost surely, 2^30072749407 is an apocalyptic number.

30072749407 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

30072749407 is a deficient number, since it is larger than the sum of its proper divisors (812777049).

30072749407 is an equidigital number, since it uses as much as digits as its factorization.

30072749407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812777048.

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 30072749407 in words is "thirty billion, seventy-two million, seven hundred forty-nine thousand, four hundred seven".