30546722642 has 4 divisors (see below), whose sum is σ = 45820083966. Its totient is φ = 15273361320.

The previous prime is 30546722639. The next prime is 30546722653. The reversal of 30546722642 is 24622764503.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24622764503 = 1471 ⋅16738793.

It can be written as a sum of positive squares in only one way, i.e., 20632736881 + 9913985761 = 143641^2 + 99569^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30546722642.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7636680659 + ... + 7636680662.

Almost surely, 2^30546722642 is an apocalyptic number.

30546722642 is a deficient number, since it is larger than the sum of its proper divisors (15273361324).

30546722642 is a wasteful number, since it uses less digits than its factorization.

30546722642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15273361323.

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 30546722642 in words is "thirty billion, five hundred forty-six million, seven hundred twenty-two thousand, six hundred forty-two".