378780353926 has 16 divisors (see below), whose sum is σ = 619247959344. Its totient is φ = 172715415264.

The previous prime is 378780353921. The next prime is 378780353929. The reversal of 378780353926 is 629353087873.

It is a super-2 number, since 2×378780353926² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378780353921) 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, 87759741 + ... + 87764056.

It is an arithmetic number, because the mean of its divisors is an integer number (38702997459).

Almost surely, 2^378780353926 is an apocalyptic number.

378780353926 is a deficient number, since it is larger than the sum of its proper divisors (240467605418).

378780353926 is a wasteful number, since it uses less digits than its factorization.

378780353926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175523895.

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 378780353926 in words is "three hundred seventy-eight billion, seven hundred eighty million, three hundred fifty-three thousand, nine hundred twenty-six".