402278152957 has 8 divisors (see below), whose sum is σ = 406578981600. Its totient is φ = 398000140944.

The previous prime is 402278152921. The next prime is 402278152967. The reversal of 402278152957 is 759251872204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402278152957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402278152967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5668707 + ... + 5739232.

It is an arithmetic number, because the mean of its divisors is an integer number (50822372700).

Almost surely, 2^402278152957 is an apocalyptic number.

It is an amenable number.

402278152957 is a deficient number, since it is larger than the sum of its proper divisors (4300828643).

402278152957 is a wasteful number, since it uses less digits than its factorization.

402278152957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11408315.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 402278152957 in words is "four hundred two billion, two hundred seventy-eight million, one hundred fifty-two thousand, nine hundred fifty-seven".