157828162661719 has 32 divisors (see below), whose sum is σ = 180700859059200. Its totient is φ = 136523104623360.

The previous prime is 157828162661681. The next prime is 157828162661723. The reversal of 157828162661719 is 917166261828751.

It is a cyclic number.

It is not a de Polignac number, because 157828162661719 - 2⁷ = 157828162661591 is a prime.

It is a super-2 number, since 2×157828162661719² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157828162661789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25709142 + ... + 31250860.

It is an arithmetic number, because the mean of its divisors is an integer number (5646901845600).

Almost surely, 2^{157828162661719} is an apocalyptic number.

157828162661719 is a deficient number, since it is larger than the sum of its proper divisors (22872696397481).

157828162661719 is a wasteful number, since it uses less digits than its factorization.

157828162661719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543055.

The product of its digits is 121927680, while the sum is 70.

The spelling of 157828162661719 in words is "one hundred fifty-seven trillion, eight hundred twenty-eight billion, one hundred sixty-two million, six hundred sixty-one thousand, seven hundred nineteen".