402278152959 has 24 divisors (see below), whose sum is σ = 590911994192. Its totient is φ = 263646990720.

The previous prime is 402278152921. The next prime is 402278152967. The reversal of 402278152959 is 959251872204.

402278152959 is a `hidden beast` number, since 40 + 2 + 2 + 78 + 1 + 529 + 5 + 9 = 666.

It is not a de Polignac number, because 402278152959 - 2⁹ = 402278152447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402278152919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 828747 + ... + 1221219.

Almost surely, 2^402278152959 is an apocalyptic number.

402278152959 is a deficient number, since it is larger than the sum of its proper divisors (188633841233).

402278152959 is a wasteful number, since it uses less digits than its factorization.

402278152959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394407 (or 394404 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 402278152959 in words is "four hundred two billion, two hundred seventy-eight million, one hundred fifty-two thousand, nine hundred fifty-nine".