20147552472734 has 8 divisors (see below), whose sum is σ = 30265576630200. Its totient is φ = 10059026929336.

The previous prime is 20147552472721. The next prime is 20147552472791. The reversal of 20147552472734 is 43727425574102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7374651809 + ... + 7374654540.

It is an arithmetic number, because the mean of its divisors is an integer number (3783197078775).

Almost surely, 2^{20147552472734} is an apocalyptic number.

20147552472734 is a deficient number, since it is larger than the sum of its proper divisors (10118024157466).

20147552472734 is a wasteful number, since it uses less digits than its factorization.

20147552472734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14749307034.

The product of its (nonzero) digits is 13171200, while the sum is 53.

The spelling of 20147552472734 in words is "twenty trillion, one hundred forty-seven billion, five hundred fifty-two million, four hundred seventy-two thousand, seven hundred thirty-four".