902094643402 has 4 divisors (see below), whose sum is σ = 1353141965106. Its totient is φ = 451047321700.

The previous prime is 902094643391. The next prime is 902094643427. The reversal of 902094643402 is 204346490209.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 475921996641 + 426172646761 = 689871^2 + 652819^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225523660849 + ... + 225523660852.

Almost surely, 2^902094643402 is an apocalyptic number.

902094643402 is a deficient number, since it is larger than the sum of its proper divisors (451047321704).

902094643402 is a wasteful number, since it uses less digits than its factorization.

902094643402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451047321703.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 902094643402 in words is "nine hundred two billion, ninety-four million, six hundred forty-three thousand, four hundred two".