400364951615 has 8 divisors (see below), whose sum is σ = 480470213040. Its totient is φ = 320270447232.

The previous prime is 400364951599. The next prime is 400364951629. The reversal of 400364951615 is 516159463004.

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

It is a cyclic number.

It is not a de Polignac number, because 400364951615 - 2⁴ = 400364951599 is a prime.

It is a super-2 number, since 2×400364951615² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2607149 + ... + 2756438.

It is an arithmetic number, because the mean of its divisors is an integer number (60058776630).

Almost surely, 2^400364951615 is an apocalyptic number.

400364951615 is a deficient number, since it is larger than the sum of its proper divisors (80105261425).

400364951615 is a wasteful number, since it uses less digits than its factorization.

400364951615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5378521.

The product of its (nonzero) digits is 388800, while the sum is 44.

The spelling of 400364951615 in words is "four hundred billion, three hundred sixty-four million, nine hundred fifty-one thousand, six hundred fifteen".