157802378213 has 16 divisors (see below), whose sum is σ = 172948722240. Its totient is φ = 143459683200.

The previous prime is 157802378179. The next prime is 157802378281. The reversal of 157802378213 is 312873208751.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157802378213 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157802378813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1612895 + ... + 1707932.

It is an arithmetic number, because the mean of its divisors is an integer number (10809295140).

Almost surely, 2^157802378213 is an apocalyptic number.

It is an amenable number.

157802378213 is a deficient number, since it is larger than the sum of its proper divisors (15146344027).

157802378213 is a wasteful number, since it uses less digits than its factorization.

157802378213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320948.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 157802378213 in words is "one hundred fifty-seven billion, eight hundred two million, three hundred seventy-eight thousand, two hundred thirteen".