8019496157 has 4 divisors (see below), whose sum is σ = 8024010876. Its totient is φ = 8014981440.

The previous prime is 8019496127. The next prime is 8019496187. The reversal of 8019496157 is 7516949108.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (8019496127) and next prime (8019496187).

It can be written as a sum of positive squares in 2 ways, for example, as 1473715321 + 6545780836 = 38389^2 + 80906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8019496157 is a prime.

It is a super-2 number, since 2×8019496157² (a number of 21 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 (8019496127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2254694 + ... + 2258247.

It is an arithmetic number, because the mean of its divisors is an integer number (2006002719).

Almost surely, 2^8019496157 is an apocalyptic number.

It is an amenable number.

8019496157 is a deficient number, since it is larger than the sum of its proper divisors (4514719).

8019496157 is a wasteful number, since it uses less digits than its factorization.

8019496157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514718.

The product of its (nonzero) digits is 544320, while the sum is 50.

The square root of 8019496157 is about 89551.6396108971. The cubic root of 8019496157 is about 2001.6233617418.

The spelling of 8019496157 in words is "eight billion, nineteen million, four hundred ninety-six thousand, one hundred fifty-seven".