11465280780 has 24 divisors (see below), whose sum is σ = 32102786352. Its totient is φ = 3057408192.

The previous prime is 11465280767. The next prime is 11465280857. The reversal of 11465280780 is 8708256411.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95543947 + ... + 95544066.

It is an arithmetic number, because the mean of its divisors is an integer number (1337616098).

Almost surely, 2^11465280780 is an apocalyptic number.

11465280780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11465280780 is an abundant number, since it is smaller than the sum of its proper divisors (20637505572).

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

11465280780 is a wasteful number, since it uses less digits than its factorization.

11465280780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191088025 (or 191088023 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 11465280780 in words is "eleven billion, four hundred sixty-five million, two hundred eighty thousand, seven hundred eighty".