1240090476857 has 8 divisors (see below), whose sum is σ = 1240869100800. Its totient is φ = 1239312103344.

The previous prime is 1240090476847. The next prime is 1240090476883. The reversal of 1240090476857 is 7586740900421.

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

It is a cyclic number.

It is not a de Polignac number, because 1240090476857 - 2²⁸ = 1239822041401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240090476799 and 1240090476808.

It is not an unprimeable number, because it can be changed into a prime (1240090476847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10383758 + ... + 10502504.

It is an arithmetic number, because the mean of its divisors is an integer number (155108637600).

Almost surely, 2^{1240090476857} is an apocalyptic number.

It is an amenable number.

1240090476857 is a deficient number, since it is larger than the sum of its proper divisors (778623943).

1240090476857 is a wasteful number, since it uses less digits than its factorization.

1240090476857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125215.

The product of its (nonzero) digits is 3386880, while the sum is 53.

The spelling of 1240090476857 in words is "one trillion, two hundred forty billion, ninety million, four hundred seventy-six thousand, eight hundred fifty-seven".