1157172061742 has 8 divisors (see below), whose sum is σ = 1755260992800. Its totient is φ = 572085064144.

The previous prime is 1157172061709. The next prime is 1157172061751. The reversal of 1157172061742 is 2471602717511.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1157172061693 and 1157172061702.

It is a congruent number.

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, 3250483142 + ... + 3250483497.

It is an arithmetic number, because the mean of its divisors is an integer number (219407624100).

Almost surely, 2^{1157172061742} is an apocalyptic number.

1157172061742 is a deficient number, since it is larger than the sum of its proper divisors (598088931058).

1157172061742 is an equidigital number, since it uses as much as digits as its factorization.

1157172061742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500966730.

The product of its (nonzero) digits is 164640, while the sum is 44.

The spelling of 1157172061742 in words is "one trillion, one hundred fifty-seven billion, one hundred seventy-two million, sixty-one thousand, seven hundred forty-two".