781032441364 has 48 divisors (see below), whose sum is σ = 1598705371648. Its totient is φ = 326879709408.

The previous prime is 781032441181. The next prime is 781032441439. The reversal of 781032441364 is 463144230187.

It is a super-2 number, since 2×781032441364² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 781032441364.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6347959 + ... + 6469825.

Almost surely, 2^781032441364 is an apocalyptic number.

It is an amenable number.

781032441364 is an abundant number, since it is smaller than the sum of its proper divisors (817672930284).

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

781032441364 is a wasteful number, since it uses less digits than its factorization.

781032441364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127244 (or 127242 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 781032441364 in words is "seven hundred eighty-one billion, thirty-two million, four hundred forty-one thousand, three hundred sixty-four".