2490248780781 has 32 divisors (see below), whose sum is σ = 3448334453760. Its totient is φ = 1597289472000.

The previous prime is 2490248780759. The next prime is 2490248780801. The reversal of 2490248780781 is 1870878420942.

It is not a de Polignac number, because 2490248780781 - 2⁹ = 2490248780269 is a prime.

It is a super-2 number, since 2×2490248780781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490248760781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118072285 + ... + 118093373.

It is an arithmetic number, because the mean of its divisors is an integer number (107760451680).

Almost surely, 2^{2490248780781} is an apocalyptic number.

It is an amenable number.

2490248780781 is a deficient number, since it is larger than the sum of its proper divisors (958085672979).

2490248780781 is a wasteful number, since it uses less digits than its factorization.

2490248780781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34357.

The product of its (nonzero) digits is 14450688, while the sum is 60.

The spelling of 2490248780781 in words is "two trillion, four hundred ninety billion, two hundred forty-eight million, seven hundred eighty thousand, seven hundred eighty-one".