157321422719 has 8 divisors (see below), whose sum is σ = 157438887408. Its totient is φ = 157204005760.

The previous prime is 157321422673. The next prime is 157321422751. The reversal of 157321422719 is 917224123751.

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 157321422719 - 2¹⁶ = 157321357183 is a prime.

It is a super-2 number, since 2×157321422719² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157321422719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157321422799) 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, 8855804 + ... + 8873550.

It is an arithmetic number, because the mean of its divisors is an integer number (19679860926).

Almost surely, 2^157321422719 is an apocalyptic number.

157321422719 is a deficient number, since it is larger than the sum of its proper divisors (117464689).

157321422719 is a wasteful number, since it uses less digits than its factorization.

157321422719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23865.

The product of its digits is 211680, while the sum is 44.

The spelling of 157321422719 in words is "one hundred fifty-seven billion, three hundred twenty-one million, four hundred twenty-two thousand, seven hundred nineteen".