20473536534 has 16 divisors (see below), whose sum is σ = 44669534400. Its totient is φ = 6204101960.

The previous prime is 20473536527. The next prime is 20473536607. The reversal of 20473536534 is 43563537402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155102484 + ... + 155102615.

It is an arithmetic number, because the mean of its divisors is an integer number (2791845900).

Almost surely, 2^20473536534 is an apocalyptic number.

20473536534 is an abundant number, since it is smaller than the sum of its proper divisors (24195997866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20473536534 is a wasteful number, since it uses less digits than its factorization.

20473536534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310205115.

The product of its (nonzero) digits is 907200, while the sum is 42.

The spelling of 20473536534 in words is "twenty billion, four hundred seventy-three million, five hundred thirty-six thousand, five hundred thirty-four".