78199041000 has 128 divisors (see below), whose sum is σ = 256822300800. Its totient is φ = 19755532800.

The previous prime is 78199040999. The next prime is 78199041023. The reversal of 78199041000 is 14099187.

It is a happy number.

It is a super-2 number, since 2×78199041000² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78199041000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 628957 + ... + 742956.

It is an arithmetic number, because the mean of its divisors is an integer number (2006424225).

Almost surely, 2^78199041000 is an apocalyptic number.

It is an amenable number.

78199041000 is an abundant number, since it is smaller than the sum of its proper divisors (178623259800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78199041000 is a wasteful number, since it uses less digits than its factorization.

78199041000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371956 (or 1371942 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 39.

The spelling of 78199041000 in words is "seventy-eight billion, one hundred ninety-nine million, forty-one thousand".