781464882 has 64 divisors (see below), whose sum is σ = 1784208384. Its totient is φ = 225867840.

The previous prime is 781464863. The next prime is 781464899. The reversal of 781464882 is 288464187.

It is a super-2 number, since 2×781464882² = 1221374723598547848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 890628 + ... + 891504.

It is an arithmetic number, because the mean of its divisors is an integer number (27878256).

Almost surely, 2^781464882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 781464882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (892104192).

781464882 is an abundant number, since it is smaller than the sum of its proper divisors (1002743502).

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

781464882 is a wasteful number, since it uses less digits than its factorization.

781464882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503.

The product of its digits is 688128, while the sum is 48.

The square root of 781464882 is about 27954.6933805399. The cubic root of 781464882 is about 921.0923076722.

It can be divided in two parts, 78146 and 4882, that added together give a triangular number (83028 = T₄₀₇).

The spelling of 781464882 in words is "seven hundred eighty-one million, four hundred sixty-four thousand, eight hundred eighty-two".