1538802857040 has 480 divisors, whose sum is σ = 5342510628864. Its totient is φ = 365774807040.

The previous prime is 1538802857029. The next prime is 1538802857117. The reversal of 1538802857040 is 407582088351.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 101049907 + ... + 101065133.

Almost surely, 2^{1538802857040} is an apocalyptic number.

1538802857040 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 1538802857040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2671255314432).

1538802857040 is an abundant number, since it is smaller than the sum of its proper divisors (3803707771824).

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

1538802857040 is a wasteful number, since it uses less digits than its factorization.

1538802857040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15355 (or 15332 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 1538802857040 in words is "one trillion, five hundred thirty-eight billion, eight hundred two million, eight hundred fifty-seven thousand, forty".