1426261161272 has 32 divisors (see below), whose sum is σ = 2740707688320. Its totient is φ = 695421557760.

The previous prime is 1426261161263. The next prime is 1426261161287. The reversal of 1426261161272 is 2721611626241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 261233 + ... + 1709024.

It is an arithmetic number, because the mean of its divisors is an integer number (85647115260).

Almost surely, 2^{1426261161272} is an apocalyptic number.

It is an amenable number.

1426261161272 is a deficient number, since it is larger than the sum of its proper divisors (1314446527048).

1426261161272 is a wasteful number, since it uses less digits than its factorization.

1426261161272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972511 (or 1972507 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The spelling of 1426261161272 in words is "one trillion, four hundred twenty-six billion, two hundred sixty-one million, one hundred sixty-one thousand, two hundred seventy-two".