2503494972778 has 16 divisors (see below), whose sum is σ = 3823787036160. Its totient is φ = 1229074376400.

The previous prime is 2503494972751. The next prime is 2503494972779. The reversal of 2503494972778 is 8772794943052.

It is a super-2 number, since 2×2503494972778² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2503494972779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43741858 + ... + 43799053.

It is an arithmetic number, because the mean of its divisors is an integer number (238986689760).

Almost surely, 2^{2503494972778} is an apocalyptic number.

2503494972778 is a deficient number, since it is larger than the sum of its proper divisors (1320292063382).

2503494972778 is a wasteful number, since it uses less digits than its factorization.

2503494972778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87541173.

The product of its (nonzero) digits is 213373440, while the sum is 67.

The spelling of 2503494972778 in words is "two trillion, five hundred three billion, four hundred ninety-four million, nine hundred seventy-two thousand, seven hundred seventy-eight".