157801089639 has 8 divisors (see below), whose sum is σ = 212765514480. Its totient is φ = 104018695616.

The previous prime is 157801089631. The next prime is 157801089659. The reversal of 157801089639 is 936980108751.

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

It is a cyclic number.

It is not a de Polignac number, because 157801089639 - 2³ = 157801089631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157801089631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295507392 + ... + 295507925.

It is an arithmetic number, because the mean of its divisors is an integer number (26595689310).

Almost surely, 2^157801089639 is an apocalyptic number.

157801089639 is a deficient number, since it is larger than the sum of its proper divisors (54964424841).

157801089639 is an equidigital number, since it uses as much as digits as its factorization.

157801089639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591015409.

The product of its (nonzero) digits is 3265920, while the sum is 57.

The spelling of 157801089639 in words is "one hundred fifty-seven billion, eight hundred one million, eighty-nine thousand, six hundred thirty-nine".