30156716973 has 4 divisors (see below), whose sum is σ = 40208955968. Its totient is φ = 20104477980.

The previous prime is 30156716971. The next prime is 30156716987. The reversal of 30156716973 is 37961765103.

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.

It is not a de Polignac number, because 30156716973 - 2¹ = 30156716971 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 (30156716971) 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, 5026119493 + ... + 5026119498.

It is an arithmetic number, because the mean of its divisors is an integer number (10052238992).

Almost surely, 2^30156716973 is an apocalyptic number.

It is an amenable number.

30156716973 is a deficient number, since it is larger than the sum of its proper divisors (10052238995).

30156716973 is a wasteful number, since it uses less digits than its factorization.

30156716973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10052238994.

The product of its (nonzero) digits is 714420, while the sum is 48.

The spelling of 30156716973 in words is "thirty billion, one hundred fifty-six million, seven hundred sixteen thousand, nine hundred seventy-three".