5157646402 has 8 divisors (see below), whose sum is σ = 7737950412. Its totient is φ = 2578329600.

The previous prime is 5157646381. The next prime is 5157646409. The reversal of 5157646402 is 2046467515.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5146484121 + 11162281 = 71739^2 + 3341^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5157646409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233599 + ... + 254722.

Almost surely, 2^5157646402 is an apocalyptic number.

5157646402 is a deficient number, since it is larger than the sum of its proper divisors (2580304010).

5157646402 is a wasteful number, since it uses less digits than its factorization.

5157646402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493604.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 5157646402 is about 71816.7557189825. The cubic root of 5157646402 is about 1727.7617486397.

The spelling of 5157646402 in words is "five billion, one hundred fifty-seven million, six hundred forty-six thousand, four hundred two".