395908994658 has 16 divisors (see below), whose sum is σ = 792595055520. Its totient is φ = 131840153856.

The previous prime is 395908994653. The next prime is 395908994659. The reversal of 395908994658 is 856499809593.

It is a happy number.

It is a super-2 number, since 2×395908994658² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 395908994658.

It is not an unprimeable number, because it can be changed into a prime (395908994651) 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, 32371135 + ... + 32383362.

It is an arithmetic number, because the mean of its divisors is an integer number (49537190970).

Almost surely, 2^395908994658 is an apocalyptic number.

395908994658 is an abundant number, since it is smaller than the sum of its proper divisors (396686060862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

395908994658 is a wasteful number, since it uses less digits than its factorization.

395908994658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64755521.

The product of its (nonzero) digits is 755827200, while the sum is 75.

The spelling of 395908994658 in words is "three hundred ninety-five billion, nine hundred eight million, nine hundred ninety-four thousand, six hundred fifty-eight".