1180781400469 has 16 divisors (see below), whose sum is σ = 1293153924096. Its totient is φ = 1069248697200.

The previous prime is 1180781400433. The next prime is 1180781400517. The reversal of 1180781400469 is 9640041870811.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1180781400469 - 2⁷ = 1180781400341 is a prime.

It is a super-2 number, since 2×1180781400469² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180781404469) 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, 14826534 + ... + 14905960.

It is an arithmetic number, because the mean of its divisors is an integer number (80822120256).

Almost surely, 2^{1180781400469} is an apocalyptic number.

It is an amenable number.

1180781400469 is a deficient number, since it is larger than the sum of its proper divisors (112372523627).

1180781400469 is a wasteful number, since it uses less digits than its factorization.

1180781400469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84696.

The product of its (nonzero) digits is 387072, while the sum is 49.

The spelling of 1180781400469 in words is "one trillion, one hundred eighty billion, seven hundred eighty-one million, four hundred thousand, four hundred sixty-nine".