799209815040 has 1848 divisors, whose sum is σ = 3576858169248. Its totient is φ = 167692861440.

The previous prime is 799209814979. The next prime is 799209815077. The reversal of 799209815040 is 40518902997.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 4415523750 + ... + 4415523930.

Almost surely, 2^799209815040 is an apocalyptic number.

799209815040 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 799209815040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1788429084624).

799209815040 is an abundant number, since it is smaller than the sum of its proper divisors (2777648354208).

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

799209815040 is a wasteful number, since it uses less digits than its factorization.

799209815040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 799209815040 in words is "seven hundred ninety-nine billion, two hundred nine million, eight hundred fifteen thousand, forty".