83724644642738 has 16 divisors (see below), whose sum is σ = 137136848541120. Its totient is φ = 38019744272400.

The previous prime is 83724644642651. The next prime is 83724644642797.

83724644642738 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×83724644642738² (a number of 29 digits) contains 22 as substring.

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, 1845595973 + ... + 1845641336.

It is an arithmetic number, because the mean of its divisors is an integer number (8571053033820).

Almost surely, 2^{83724644642738} is an apocalyptic number.

83724644642738 is a deficient number, since it is larger than the sum of its proper divisors (53412203898382).

83724644642738 is a wasteful number, since it uses less digits than its factorization.

83724644642738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691238353.

The product of its digits is 1040449536, while the sum is 68.

The spelling of 83724644642738 in words is "eighty-three trillion, seven hundred twenty-four billion, six hundred forty-four million, six hundred forty-two thousand, seven hundred thirty-eight".