78151899001 has 16 divisors (see below), whose sum is σ = 88305811200. Its totient is φ = 68512259200.

The previous prime is 78151898999. The next prime is 78151899037. The reversal of 78151899001 is 10099815187.

It is a happy number.

It is not a de Polignac number, because 78151899001 - 2¹ = 78151898999 is a prime.

It is a super-2 number, since 2×78151899001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78151899041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106656 + ... + 409486.

It is an arithmetic number, because the mean of its divisors is an integer number (5519113200).

Almost surely, 2^78151899001 is an apocalyptic number.

It is an amenable number.

78151899001 is a deficient number, since it is larger than the sum of its proper divisors (10153912199).

78151899001 is a wasteful number, since it uses less digits than its factorization.

78151899001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303680.

The product of its (nonzero) digits is 181440, while the sum is 49.

The spelling of 78151899001 in words is "seventy-eight billion, one hundred fifty-one million, eight hundred ninety-nine thousand, one".