1377323051536 has 60 divisors (see below), whose sum is σ = 2774344717776. Its totient is φ = 662356802880.

The previous prime is 1377323051521. The next prime is 1377323051623. The reversal of 1377323051536 is 6351503237731.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2231515 + ... + 2781061.

Almost surely, 2^{1377323051536} is an apocalyptic number.

1377323051536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1377323051536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387172358888).

1377323051536 is an abundant number, since it is smaller than the sum of its proper divisors (1397021666240).

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

1377323051536 is a wasteful number, since it uses less digits than its factorization.

1377323051536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549780 (or 549743 counting only the distinct ones).

The product of its (nonzero) digits is 1190700, while the sum is 46.

The spelling of 1377323051536 in words is "one trillion, three hundred seventy-seven billion, three hundred twenty-three million, fifty-one thousand, five hundred thirty-six".