1540668277712 has 40 divisors (see below), whose sum is σ = 3017592948000. Its totient is φ = 761979415680.

The previous prime is 1540668277667. The next prime is 1540668277777. The reversal of 1540668277712 is 2177728660451.

It is a congruent number.

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, 849587 + ... + 1950162.

It is an arithmetic number, because the mean of its divisors is an integer number (75439823700).

Almost surely, 2^{1540668277712} is an apocalyptic number.

It is an amenable number.

1540668277712 is a deficient number, since it is larger than the sum of its proper divisors (1476924670288).

1540668277712 is a wasteful number, since it uses less digits than its factorization.

1540668277712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800131 (or 2800125 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 1540668277712 in words is "one trillion, five hundred forty billion, six hundred sixty-eight million, two hundred seventy-seven thousand, seven hundred twelve".