791870072158 has 8 divisors (see below), whose sum is σ = 1295787390840. Its totient is φ = 359940941880.

The previous prime is 791870072131. The next prime is 791870072171. The reversal of 791870072158 is 851270078197.

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

It is a super-2 number, since 2×791870072158² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 791870072099 and 791870072108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17997047073 + ... + 17997047116.

It is an arithmetic number, because the mean of its divisors is an integer number (161973423855).

Almost surely, 2^791870072158 is an apocalyptic number.

791870072158 is a deficient number, since it is larger than the sum of its proper divisors (503917318682).

791870072158 is a wasteful number, since it uses less digits than its factorization.

791870072158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35994094202.

The product of its (nonzero) digits is 1975680, while the sum is 55.

The spelling of 791870072158 in words is "seven hundred ninety-one billion, eight hundred seventy million, seventy-two thousand, one hundred fifty-eight".