1287407854404 has 36 divisors (see below), whose sum is σ = 3719178246784. Its totient is φ = 367830815472.

The previous prime is 1287407854393. The next prime is 1287407854423. The reversal of 1287407854404 is 4044587047821.

It is a happy number.

1287407854404 is a `hidden beast` number, since 1 + 2 + 87 + 40 + 7 + 85 + 440 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1287407854404² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2554380412 + ... + 2554380915.

Almost surely, 2^{1287407854404} is an apocalyptic number.

1287407854404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1287407854404 is an abundant number, since it is smaller than the sum of its proper divisors (2431770392380).

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

1287407854404 is a wasteful number, since it uses less digits than its factorization.

1287407854404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5108761344 (or 5108761339 counting only the distinct ones).

The product of its (nonzero) digits is 8028160, while the sum is 54.

The spelling of 1287407854404 in words is "one trillion, two hundred eighty-seven billion, four hundred seven million, eight hundred fifty-four thousand, four hundred four".