30445993706 has 4 divisors (see below), whose sum is σ = 45668990562. Its totient is φ = 15222996852.

The previous prime is 30445993703. The next prime is 30445993727. The reversal of 30445993706 is 60739954403.

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

It can be written as a sum of positive squares in only one way, i.e., 19059183025 + 11386810681 = 138055^2 + 106709^2 .

It is a super-2 number, since 2×30445993706² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30445993703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7611498425 + ... + 7611498428.

Almost surely, 2^30445993706 is an apocalyptic number.

30445993706 is a deficient number, since it is larger than the sum of its proper divisors (15222996856).

30445993706 is a wasteful number, since it uses less digits than its factorization.

30445993706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15222996855.

The product of its (nonzero) digits is 2449440, while the sum is 50.

The spelling of 30445993706 in words is "thirty billion, four hundred forty-five million, nine hundred ninety-three thousand, seven hundred six".