2780725957702 has 48 divisors (see below), whose sum is σ = 5241772357920. Its totient is φ = 1082974337280.

The previous prime is 2780725957693. The next prime is 2780725957727. The reversal of 2780725957702 is 2077595270872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4010574 + ... + 4652542.

It is an arithmetic number, because the mean of its divisors is an integer number (109203590790).

Almost surely, 2^{2780725957702} is an apocalyptic number.

2780725957702 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2780725957702 is a deficient number, since it is larger than the sum of its proper divisors (2461046400218).

2780725957702 is a wasteful number, since it uses less digits than its factorization.

2780725957702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644557 (or 644546 counting only the distinct ones).

The product of its (nonzero) digits is 34574400, while the sum is 61.

The spelling of 2780725957702 in words is "two trillion, seven hundred eighty billion, seven hundred twenty-five million, nine hundred fifty-seven thousand, seven hundred two".