39802143745 has 32 divisors (see below), whose sum is σ = 58886972928. Its totient is φ = 25149616128.

The previous prime is 39802143739. The next prime is 39802143761. The reversal of 39802143745 is 54734120893.

It is not a de Polignac number, because 39802143745 - 2³ = 39802143737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39802143695 and 39802143704.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186732 + ... + 338338.

It is an arithmetic number, because the mean of its divisors is an integer number (1840217904).

Almost surely, 2^39802143745 is an apocalyptic number.

39802143745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39802143745 is a deficient number, since it is larger than the sum of its proper divisors (19084829183).

39802143745 is a wasteful number, since it uses less digits than its factorization.

39802143745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152209.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 39802143745 in words is "thirty-nine billion, eight hundred two million, one hundred forty-three thousand, seven hundred forty-five".