1261426387562 has 8 divisors (see below), whose sum is σ = 2064152270592. Its totient is φ = 573375630700.

The previous prime is 1261426387483. The next prime is 1261426387597. The reversal of 1261426387562 is 2657836241621.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 28668781514 + ... + 28668781557.

It is an arithmetic number, because the mean of its divisors is an integer number (258019033824).

Almost surely, 2^{1261426387562} is an apocalyptic number.

1261426387562 is a deficient number, since it is larger than the sum of its proper divisors (802725883030).

1261426387562 is a wasteful number, since it uses less digits than its factorization.

1261426387562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57337563084.

The product of its digits is 5806080, while the sum is 53.

The spelling of 1261426387562 in words is "one trillion, two hundred sixty-one billion, four hundred twenty-six million, three hundred eighty-seven thousand, five hundred sixty-two".