20378394396 has 30 divisors (see below), whose sum is σ = 53273149160. Its totient is φ = 6792798024.

The previous prime is 20378394383. The next prime is 20378394403. The reversal of 20378394396 is 69349387302.

It is a super-3 number, since 3×20378394396³ (a number of 32 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 31447816 + ... + 31448463.

Almost surely, 2^20378394396 is an apocalyptic number.

It is an amenable number.

20378394396 is an abundant number, since it is smaller than the sum of its proper divisors (32894754764).

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

20378394396 is a wasteful number, since it uses less digits than its factorization.

20378394396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62896295 (or 62896284 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The spelling of 20378394396 in words is "twenty billion, three hundred seventy-eight million, three hundred ninety-four thousand, three hundred ninety-six".