1276351001256 has 32 divisors (see below), whose sum is σ = 3213833464800. Its totient is φ = 422389538880.

The previous prime is 1276351001227. The next prime is 1276351001279. The reversal of 1276351001256 is 6521001536721.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191296275 + ... + 191302946.

It is an arithmetic number, because the mean of its divisors is an integer number (100432295775).

Almost surely, 2^{1276351001256} is an apocalyptic number.

It is an amenable number.

1276351001256 is an abundant number, since it is smaller than the sum of its proper divisors (1937482463544).

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

1276351001256 is a wasteful number, since it uses less digits than its factorization.

1276351001256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382599369 (or 382599365 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

Adding to 1276351001256 its reverse (6521001536721), we get a palindrome (7797352537977).

The spelling of 1276351001256 in words is "one trillion, two hundred seventy-six billion, three hundred fifty-one million, one thousand, two hundred fifty-six".