780050891540 has 48 divisors (see below), whose sum is σ = 1662721479552. Its totient is φ = 307332786816.

The previous prime is 780050891533. The next prime is 780050891569. The reversal of 780050891540 is 45198050087.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17353334 + ... + 17398226.

It is an arithmetic number, because the mean of its divisors is an integer number (34640030824).

Almost surely, 2^780050891540 is an apocalyptic number.

It is an amenable number.

780050891540 is an abundant number, since it is smaller than the sum of its proper divisors (882670588012).

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

780050891540 is a wasteful number, since it uses less digits than its factorization.

780050891540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57936 (or 57934 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 47.

The spelling of 780050891540 in words is "seven hundred eighty billion, fifty million, eight hundred ninety-one thousand, five hundred forty".