1277230906742 has 32 divisors (see below), whose sum is σ = 2298752911872. Its totient is φ = 520373139264.

The previous prime is 1277230906739. The next prime is 1277230906781. The reversal of 1277230906742 is 2476090327721.

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 15 ways as a sum of consecutive naturals, for example, 12114863 + ... + 12219834.

It is an arithmetic number, because the mean of its divisors is an integer number (71836028496).

Almost surely, 2^{1277230906742} is an apocalyptic number.

1277230906742 is a deficient number, since it is larger than the sum of its proper divisors (1021522005130).

1277230906742 is a wasteful number, since it uses less digits than its factorization.

1277230906742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24334892.

The product of its (nonzero) digits is 1778112, while the sum is 50.

The spelling of 1277230906742 in words is "one trillion, two hundred seventy-seven billion, two hundred thirty million, nine hundred six thousand, seven hundred forty-two".