39650800157 has 4 divisors (see below), whose sum is σ = 39652457436. Its totient is φ = 39649142880.

The previous prime is 39650800141. The next prime is 39650800183. The reversal of 39650800157 is 75100805693.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33046149796 + 6604650361 = 181786^2 + 81269^2 .

It is a cyclic number.

It is not a de Polignac number, because 39650800157 - 2⁴ = 39650800141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39650800457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 792218 + ... + 840779.

It is an arithmetic number, because the mean of its divisors is an integer number (9913114359).

Almost surely, 2^39650800157 is an apocalyptic number.

It is an amenable number.

39650800157 is a deficient number, since it is larger than the sum of its proper divisors (1657279).

39650800157 is a wasteful number, since it uses less digits than its factorization.

39650800157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657278.

The product of its (nonzero) digits is 226800, while the sum is 44.

The spelling of 39650800157 in words is "thirty-nine billion, six hundred fifty million, eight hundred thousand, one hundred fifty-seven".