1461881958140 has 12 divisors (see below), whose sum is σ = 3069952112136. Its totient is φ = 584752783248.

The previous prime is 1461881958073. The next prime is 1461881958157. The reversal of 1461881958140 is 418591881641.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36547048934 + ... + 36547048973.

It is an arithmetic number, because the mean of its divisors is an integer number (255829342678).

Almost surely, 2^{1461881958140} is an apocalyptic number.

1461881958140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1461881958140 is an abundant number, since it is smaller than the sum of its proper divisors (1608070153996).

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

1461881958140 is a wasteful number, since it uses less digits than its factorization.

1461881958140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73094097916 (or 73094097914 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 56.

The spelling of 1461881958140 in words is "one trillion, four hundred sixty-one billion, eight hundred eighty-one million, nine hundred fifty-eight thousand, one hundred forty".