1378446437100 has 72 divisors (see below), whose sum is σ = 4116960053248. Its totient is φ = 355728110400.

The previous prime is 1378446437099. The next prime is 1378446437111. The reversal of 1378446437100 is 17346448731.

It is a super-2 number, since 2×1378446437100² (a number of 25 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 1378446437100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74100724 + ... + 74119323.

Almost surely, 2^{1378446437100} is an apocalyptic number.

1378446437100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1378446437100 is an abundant number, since it is smaller than the sum of its proper divisors (2738513616148).

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

1378446437100 is a wasteful number, since it uses less digits than its factorization.

1378446437100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148220095 (or 148220088 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 1378446437100 in words is "one trillion, three hundred seventy-eight billion, four hundred forty-six million, four hundred thirty-seven thousand, one hundred".