1402856778198 has 32 divisors (see below), whose sum is σ = 2996090127360. Its totient is φ = 436929806880.

The previous prime is 1402856778181. The next prime is 1402856778199. The reversal of 1402856778198 is 8918776582041.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402856778199) 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, 130033240 + ... + 130044027.

It is an arithmetic number, because the mean of its divisors is an integer number (93627816480).

Almost surely, 2^{1402856778198} is an apocalyptic number.

1402856778198 is an abundant number, since it is smaller than the sum of its proper divisors (1593233349162).

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

1402856778198 is a wasteful number, since it uses less digits than its factorization.

1402856778198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260077332.

The product of its (nonzero) digits is 54190080, while the sum is 66.

The spelling of 1402856778198 in words is "one trillion, four hundred two billion, eight hundred fifty-six million, seven hundred seventy-eight thousand, one hundred ninety-eight".