30470639501 has 4 divisors (see below), whose sum is σ = 30740291292. Its totient is φ = 30200987712.

The previous prime is 30470639491. The next prime is 30470639543. The reversal of 30470639501 is 10593607403.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11516509225 + 18954130276 = 107315^2 + 137674^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30470639501 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 (30470639581) 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, 134825726 + ... + 134825951.

It is an arithmetic number, because the mean of its divisors is an integer number (7685072823).

Almost surely, 2^30470639501 is an apocalyptic number.

It is an amenable number.

30470639501 is a deficient number, since it is larger than the sum of its proper divisors (269651791).

30470639501 is a wasteful number, since it uses less digits than its factorization.

30470639501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269651790.

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 30470639501 in words is "thirty billion, four hundred seventy million, six hundred thirty-nine thousand, five hundred one".