276399029378 has 32 divisors (see below), whose sum is σ = 447346301040. Its totient is φ = 127594055680.

The previous prime is 276399029279. The next prime is 276399029383. The reversal of 276399029378 is 873920993672.

It can be written as a sum of positive squares in 8 ways, for example, as 210803111689 + 65595917689 = 459133^2 + 256117^2 .

It is a super-2 number, since 2×276399029378² (a number of 24 digits) contains 22 as substring.

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, 15634328 + ... + 15651996.

Almost surely, 2^276399029378 is an apocalyptic number.

276399029378 is a deficient number, since it is larger than the sum of its proper divisors (170947271662).

276399029378 is a wasteful number, since it uses less digits than its factorization.

276399029378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26422.

The product of its (nonzero) digits is 61725888, while the sum is 65.

The spelling of 276399029378 in words is "two hundred seventy-six billion, three hundred ninety-nine million, twenty-nine thousand, three hundred seventy-eight".