1387274086276 has 81 divisors (see below), whose sum is σ = 2663946464781. Its totient is φ = 631842402048.

The previous prime is 1387274086271. The next prime is 1387274086291. The reversal of 1387274086276 is 6726804727831.

The square root of 1387274086276 is 1177826.

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

It can be written as a sum of positive squares in 13 ways, for example, as 1175467956100 + 211806130176 = 1084190^2 + 460224^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387274086271) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2725489110 + ... + 2725489618.

Almost surely, 2^{1387274086276} is an apocalyptic number.

1387274086276 is the 1177826-th square number.

It is an amenable number.

1387274086276 is a deficient number, since it is larger than the sum of its proper divisors (1276672378505).

1387274086276 is an frugal number, since it uses more digits than its factorization.

1387274086276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 37933056, while the sum is 61.

The spelling of 1387274086276 in words is "one trillion, three hundred eighty-seven billion, two hundred seventy-four million, eighty-six thousand, two hundred seventy-six".