2491981741080 has 640 divisors, whose sum is σ = 9578744683200. Its totient is φ = 575634014208.

The previous prime is 2491981741069. The next prime is 2491981741099. The reversal of 2491981741080 is 801471891942.

2491981741080 is a `hidden beast` number, since 2 + 491 + 9 + 8 + 1 + 74 + 1 + 0 + 80 = 666.

It is a super-2 number, since 2×2491981741080² (a number of 26 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 252757191 + ... + 252767049.

Almost surely, 2^{2491981741080} is an apocalyptic number.

2491981741080 is a gapful number since it is divisible by the number (20) 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 2491981741080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4789372341600).

2491981741080 is an abundant number, since it is smaller than the sum of its proper divisors (7086762942120).

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

2491981741080 is a wasteful number, since it uses less digits than its factorization.

2491981741080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10265 (or 10252 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The spelling of 2491981741080 in words is "two trillion, four hundred ninety-one billion, nine hundred eighty-one million, seven hundred forty-one thousand, eighty".