2120402749494 has 8 divisors (see below), whose sum is σ = 4240805499000. Its totient is φ = 706800916496.

The previous prime is 2120402749463. The next prime is 2120402749567. The reversal of 2120402749494 is 4949472040212.

It is a sphenic number, since it is the product of 3 distinct primes.

2120402749494 is an admirable number.

It is a super-2 number, since 2×2120402749494² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

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, 176700229119 + ... + 176700229130.

It is an arithmetic number, because the mean of its divisors is an integer number (530100687375).

Almost surely, 2^{2120402749494} is an apocalyptic number.

2120402749494 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2120402749494 is a wasteful number, since it uses less digits than its factorization.

2120402749494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353400458254.

The product of its (nonzero) digits is 1161216, while the sum is 48.

The spelling of 2120402749494 in words is "two trillion, one hundred twenty billion, four hundred two million, seven hundred forty-nine thousand, four hundred ninety-four".