1492377661440 has 832 divisors, whose sum is σ = 5569523527680. Its totient is φ = 378383892480.

The previous prime is 1492377661387. The next prime is 1492377661441. The reversal of 1492377661440 is 441667732941.

1492377661440 is a `hidden beast` number, since 1 + 49 + 2 + 37 + 76 + 61 + 440 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1492377661441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3446599464 + ... + 3446599896.

Almost surely, 2^{1492377661440} is an apocalyptic number.

1492377661440 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 1492377661440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2784761763840).

1492377661440 is an abundant number, since it is smaller than the sum of its proper divisors (4077145866240).

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

1492377661440 is a wasteful number, since it uses less digits than its factorization.

1492377661440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 1492377661440 in words is "one trillion, four hundred ninety-two billion, three hundred seventy-seven million, six hundred sixty-one thousand, four hundred forty".