2172457754040 has 64 divisors (see below), whose sum is σ = 7448426588160. Its totient is φ = 496561772160.

The previous prime is 2172457753957. The next prime is 2172457754041. The reversal of 2172457754040 is 404577542712.

It is a super-2 number, since 2×2172457754040² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172457754041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1293128776 + ... + 1293130455.

It is an arithmetic number, because the mean of its divisors is an integer number (116381665440).

Almost surely, 2^{2172457754040} is an apocalyptic number.

2172457754040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2172457754040 is an abundant number, since it is smaller than the sum of its proper divisors (5275968834120).

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

2172457754040 is a wasteful number, since it uses less digits than its factorization.

2172457754040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586259252 (or 2586259248 counting only the distinct ones).

The product of its (nonzero) digits is 2195200, while the sum is 48.

The spelling of 2172457754040 in words is "two trillion, one hundred seventy-two billion, four hundred fifty-seven million, seven hundred fifty-four thousand, forty".