1276400150264 has 16 divisors (see below), whose sum is σ = 2395001034000. Its totient is φ = 637733207872.

The previous prime is 1276400150239. The next prime is 1276400150287. The reversal of 1276400150264 is 4620510046721.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58346789 + ... + 58368660.

It is an arithmetic number, because the mean of its divisors is an integer number (149687564625).

Almost surely, 2^{1276400150264} is an apocalyptic number.

It is an amenable number.

1276400150264 is a deficient number, since it is larger than the sum of its proper divisors (1118600883736).

1276400150264 is a wasteful number, since it uses less digits than its factorization.

1276400150264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116716822 (or 116716818 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

Adding to 1276400150264 its reverse (4620510046721), we get a palindrome (5896910196985).

The spelling of 1276400150264 in words is "one trillion, two hundred seventy-six billion, four hundred million, one hundred fifty thousand, two hundred sixty-four".