1375424388640 has 48 divisors (see below), whose sum is σ = 3263036192640. Its totient is φ = 547867774720.

The previous prime is 1375424388631. The next prime is 1375424388649. The reversal of 1375424388640 is 468834245731.

It is an interprime number because it is at equal distance from previous prime (1375424388631) and next prime (1375424388649).

It is a super-2 number, since 2×1375424388640² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1375424388649) 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, 17945866 + ... + 18022345.

It is an arithmetic number, because the mean of its divisors is an integer number (67979920680).

Almost surely, 2^{1375424388640} is an apocalyptic number.

1375424388640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1375424388640 is an abundant number, since it is smaller than the sum of its proper divisors (1887611804000).

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

1375424388640 is a wasteful number, since it uses less digits than its factorization.

1375424388640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35968465 (or 35968457 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 1375424388640 in words is "one trillion, three hundred seventy-five billion, four hundred twenty-four million, three hundred eighty-eight thousand, six hundred forty".