799778327040 has 1920 divisors, whose sum is σ = 3761759232000. Its totient is φ = 157222010880.

The previous prime is 799778327027. The next prime is 799778327053. The reversal of 799778327040 is 40723877997.

It is an interprime number because it is at equal distance from previous prime (799778327027) and next prime (799778327053).

It is a tau number, because it is divible by the number of its divisors (1920).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1112347801 + ... + 1112348519.

It is an arithmetic number, because the mean of its divisors is an integer number (1959249600).

Almost surely, 2^799778327040 is an apocalyptic number.

799778327040 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 799778327040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1880879616000).

799778327040 is an abundant number, since it is smaller than the sum of its proper divisors (2961980904960).

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

799778327040 is a wasteful number, since it uses less digits than its factorization.

799778327040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 37340352, while the sum is 63.

The spelling of 799778327040 in words is "seven hundred ninety-nine billion, seven hundred seventy-eight million, three hundred twenty-seven thousand, forty".