1379937338640 has 880 divisors, whose sum is σ = 5693614156800. Its totient is φ = 304326263808.

The previous prime is 1379937338623. The next prime is 1379937338641. The reversal of 1379937338640 is 468337399731.

1379937338640 is a `hidden beast` number, since 137 + 99 + 37 + 3 + 386 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (1379937338641) by changing a digit.

It is a polite number, since it can be written in 175 ways as a sum of consecutive naturals, for example, 958955041 + ... + 958956479.

Almost surely, 2^{1379937338640} is an apocalyptic number.

1379937338640 is a gapful number since it is divisible by the number (10) 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 1379937338640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2846807078400).

1379937338640 is an abundant number, since it is smaller than the sum of its proper divisors (4313676818160).

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

1379937338640 is an equidigital number, since it uses as much as digits as its factorization.

1379937338640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1485 counting only the distinct ones).

The product of its (nonzero) digits is 61725888, while the sum is 63.

The spelling of 1379937338640 in words is "one trillion, three hundred seventy-nine billion, nine hundred thirty-seven million, three hundred thirty-eight thousand, six hundred forty".