396121569019 has 32 divisors (see below), whose sum is σ = 436740258240. Its totient is φ = 356298700800.

The previous prime is 396121569017. The next prime is 396121569023. The reversal of 396121569019 is 910965121693.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 396121569019 - 2¹ = 396121569017 is a prime.

It is a super-2 number, since 2×396121569019² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (396121569017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 462218439 + ... + 462219295.

It is an arithmetic number, because the mean of its divisors is an integer number (13648133070).

Almost surely, 2^396121569019 is an apocalyptic number.

396121569019 is a deficient number, since it is larger than the sum of its proper divisors (40618689221).

396121569019 is a wasteful number, since it uses less digits than its factorization.

396121569019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031.

The product of its (nonzero) digits is 787320, while the sum is 52.

The spelling of 396121569019 in words is "three hundred ninety-six billion, one hundred twenty-one million, five hundred sixty-nine thousand, nineteen".