30487857901 has 4 divisors (see below), whose sum is σ = 30615422400. Its totient is φ = 30360293404.

The previous prime is 30487857863. The next prime is 30487857941. The reversal of 30487857901 is 10975878403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10975878403 = 7 ⋅1567982629.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30487857901 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 (30487857941) 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, 63781891 + ... + 63782368.

It is an arithmetic number, because the mean of its divisors is an integer number (7653855600).

Almost surely, 2^30487857901 is an apocalyptic number.

It is an amenable number.

30487857901 is a deficient number, since it is larger than the sum of its proper divisors (127564499).

30487857901 is a wasteful number, since it uses less digits than its factorization.

30487857901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127564498.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 30487857901 in words is "thirty billion, four hundred eighty-seven million, eight hundred fifty-seven thousand, nine hundred one".