3561136419840 has 88 divisors (see below), whose sum is σ = 11390072316960. Its totient is φ = 949636374528.

The previous prime is 3561136419839. The next prime is 3561136419853. The reversal of 3561136419840 is 489146311653.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115907050 + ... + 115937769.

Almost surely, 2^{3561136419840} is an apocalyptic number.

3561136419840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3561136419840 is an abundant number, since it is smaller than the sum of its proper divisors (7828935897120).

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

3561136419840 is a wasteful number, since it uses less digits than its factorization.

3561136419840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231844847 (or 231844829 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 3561136419840 in words is "three trillion, five hundred sixty-one billion, one hundred thirty-six million, four hundred nineteen thousand, eight hundred forty".