20574074078 has 4 divisors (see below), whose sum is σ = 30861111120. Its totient is φ = 10287037038.

The previous prime is 20574074029. The next prime is 20574074089. The reversal of 20574074078 is 87047047502.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5143518518 + ... + 5143518521.

It is an arithmetic number, because the mean of its divisors is an integer number (7715277780).

Almost surely, 2^20574074078 is an apocalyptic number.

20574074078 is a deficient number, since it is larger than the sum of its proper divisors (10287037042).

20574074078 is a wasteful number, since it uses less digits than its factorization.

20574074078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10287037041.

The product of its (nonzero) digits is 439040, while the sum is 44.

The spelling of 20574074078 in words is "twenty billion, five hundred seventy-four million, seventy-four thousand, seventy-eight".