1157448813457 has 8 divisors (see below), whose sum is σ = 1290035829600. Its totient is φ = 1032028663104.

The previous prime is 1157448813427. The next prime is 1157448813467. The reversal of 1157448813457 is 7543188447511.

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 1157448813457 - 2²³ = 1157440424849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157448813427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1791716107 + ... + 1791716752.

It is an arithmetic number, because the mean of its divisors is an integer number (161254478700).

Almost surely, 2^{1157448813457} is an apocalyptic number.

1157448813457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1157448813457 is a deficient number, since it is larger than the sum of its proper divisors (132587016143).

1157448813457 is a wasteful number, since it uses less digits than its factorization.

1157448813457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583432895.

The product of its digits is 15052800, while the sum is 58.

The spelling of 1157448813457 in words is "one trillion, one hundred fifty-seven billion, four hundred forty-eight million, eight hundred thirteen thousand, four hundred fifty-seven".