1427980409802 has 64 divisors (see below), whose sum is σ = 3311939093760. Its totient is φ = 455204578752.

The previous prime is 1427980409759. The next prime is 1427980409827. The reversal of 1427980409802 is 2089040897241.

1427980409802 is a `hidden beast` number, since 1 + 427 + 98 + 0 + 40 + 98 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6060868 + ... + 6292064.

It is an arithmetic number, because the mean of its divisors is an integer number (51749048340).

Almost surely, 2^{1427980409802} is an apocalyptic number.

1427980409802 is an abundant number, since it is smaller than the sum of its proper divisors (1883958683958).

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

1427980409802 is a wasteful number, since it uses less digits than its factorization.

1427980409802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236204 (or 236198 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 1427980409802 in words is "one trillion, four hundred twenty-seven billion, nine hundred eighty million, four hundred nine thousand, eight hundred two".