1401804051540 has 48 divisors (see below), whose sum is σ = 3951045087360. Its totient is φ = 371338819200.

The previous prime is 1401804051539. The next prime is 1401804051551. The reversal of 1401804051540 is 451504081041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77353195 + ... + 77371314.

It is an arithmetic number, because the mean of its divisors is an integer number (82313439320).

Almost surely, 2^{1401804051540} is an apocalyptic number.

1401804051540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401804051540 is an abundant number, since it is smaller than the sum of its proper divisors (2549241035820).

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

1401804051540 is a wasteful number, since it uses less digits than its factorization.

1401804051540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154724672 (or 154724670 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The spelling of 1401804051540 in words is "one trillion, four hundred one billion, eight hundred four million, fifty-one thousand, five hundred forty".