11804155781457 has 16 divisors (see below), whose sum is σ = 17534024504640. Its totient is φ = 7013609800512.

The previous prime is 11804155781449. The next prime is 11804155781489. The reversal of 11804155781457 is 75418755140811.

It is not a de Polignac number, because 11804155781457 - 2³ = 11804155781449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11804155781397 and 11804155781406.

It is not an unprimeable number, because it can be changed into a prime (11804155781057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5218458543 + ... + 5218460804.

It is an arithmetic number, because the mean of its divisors is an integer number (1095876531540).

Almost surely, 2^{11804155781457} is an apocalyptic number.

It is an amenable number.

11804155781457 is a deficient number, since it is larger than the sum of its proper divisors (5729868723183).

11804155781457 is a wasteful number, since it uses less digits than its factorization.

11804155781457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10436919392.

The product of its (nonzero) digits is 6272000, while the sum is 57.

The spelling of 11804155781457 in words is "eleven trillion, eight hundred four billion, one hundred fifty-five million, seven hundred eighty-one thousand, four hundred fifty-seven".