12540026402572 has 12 divisors (see below), whose sum is σ = 23235931275480. Its totient is φ = 5901188895296.

The previous prime is 12540026402557. The next prime is 12540026402587. The reversal of 12540026402572 is 27520462004521.

It is an interprime number because it is at equal distance from previous prime (12540026402557) and next prime (12540026402587).

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, 92206076422 + ... + 92206076557.

It is an arithmetic number, because the mean of its divisors is an integer number (1936327606290).

Almost surely, 2^{12540026402572} is an apocalyptic number.

It is an amenable number.

12540026402572 is a deficient number, since it is larger than the sum of its proper divisors (10695904872908).

12540026402572 is a wasteful number, since it uses less digits than its factorization.

12540026402572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184412153000 (or 184412152998 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 40.

The spelling of 12540026402572 in words is "twelve trillion, five hundred forty billion, twenty-six million, four hundred two thousand, five hundred seventy-two".