801023477952 has 42 divisors (see below), whose sum is σ = 2119407431484. Its totient is φ = 267003692160.

The previous prime is 801023477867. The next prime is 801023477957. The reversal of 801023477952 is 259774320108.

It is a happy number.

It is a super-2 number, since 2×801023477952² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (801023477957) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12369177 + ... + 12433767.

It is an arithmetic number, because the mean of its divisors is an integer number (50462081702).

Almost surely, 2^801023477952 is an apocalyptic number.

It is an amenable number.

801023477952 is an abundant number, since it is smaller than the sum of its proper divisors (1318383953532).

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

801023477952 is an frugal number, since it uses more digits than its factorization.

801023477952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129197 (or 64596 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

Multiplying 801023477952 by its sum of digits (48), we get a square (38449126941696 = 6200736²).

801023477952 divided by its sum of digits (48) gives a square (16687989124 = 129182²).

The spelling of 801023477952 in words is "eight hundred one billion, twenty-three million, four hundred seventy-seven thousand, nine hundred fifty-two".