1276742842990 has 64 divisors (see below), whose sum is σ = 2349090201600. Its totient is φ = 499500578304.

The previous prime is 1276742842967. The next prime is 1276742843011. The reversal of 1276742842990 is 992482476721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275217091 + ... + 275221729.

It is an arithmetic number, because the mean of its divisors is an integer number (36704534400).

Almost surely, 2^{1276742842990} is an apocalyptic number.

1276742842990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1276742842990 is a deficient number, since it is larger than the sum of its proper divisors (1072347358610).

1276742842990 is a wasteful number, since it uses less digits than its factorization.

1276742842990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7921.

The product of its (nonzero) digits is 24385536, while the sum is 61.

The spelling of 1276742842990 in words is "one trillion, two hundred seventy-six billion, seven hundred forty-two million, eight hundred forty-two thousand, nine hundred ninety".