2339878071556 has 27 divisors (see below), whose sum is σ = 4119524537023. Its totient is φ = 1162913279840.

The previous prime is 2339878071551. The next prime is 2339878071563. The reversal of 2339878071556 is 6551708789332.

The square root of 2339878071556 is 1529666.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1300261284100 + 1039616787456 = 1140290^2 + 1019616^2 .

It is a super-4 number, since 4×2339878071556⁴ (a number of 51 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2339878071551) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 529262226 + ... + 529266646.

Almost surely, 2^{2339878071556} is an apocalyptic number.

2339878071556 is the 1529666-th square number.

It is an amenable number.

2339878071556 is a deficient number, since it is larger than the sum of its proper divisors (1779646465467).

2339878071556 is an frugal number, since it uses more digits than its factorization.

2339878071556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9192 (or 4596 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 64.

Multiplying 2339878071556 by its sum of digits (64), we get a square (149752196579584 = 12237328²).

The spelling of 2339878071556 in words is "two trillion, three hundred thirty-nine billion, eight hundred seventy-eight million, seventy-one thousand, five hundred fifty-six".