2778000000252 has 48 divisors (see below), whose sum is σ = 6578288694432. Its totient is φ = 912273408000.

The previous prime is 2778000000241. The next prime is 2778000000263. The reversal of 2778000000252 is 2520000008772.

It is an interprime number because it is at equal distance from previous prime (2778000000241) and next prime (2778000000263).

It is a super-2 number, since 2×2778000000252² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039749 + ... + 2576252.

It is an arithmetic number, because the mean of its divisors is an integer number (137047681134).

Almost surely, 2^{2778000000252} is an apocalyptic number.

It is an amenable number.

2778000000252 is an abundant number, since it is smaller than the sum of its proper divisors (3800288694180).

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

2778000000252 is a wasteful number, since it uses less digits than its factorization.

2778000000252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616958 (or 3616956 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The spelling of 2778000000252 in words is "two trillion, seven hundred seventy-eight billion, two hundred fifty-two", and thus it is an aban number.