117878742 has 12 divisors (see below), whose sum is σ = 255403980. Its totient is φ = 39292908.

The previous prime is 117878723. The next prime is 117878743. The reversal of 117878742 is 247878711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117878743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3274392 + ... + 3274427.

It is an arithmetic number, because the mean of its divisors is an integer number (21283665).

Almost surely, 2^117878742 is an apocalyptic number.

117878742 is an abundant number, since it is smaller than the sum of its proper divisors (137525238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117878742 is a wasteful number, since it uses less digits than its factorization.

117878742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6548827 (or 6548824 counting only the distinct ones).

The product of its digits is 175616, while the sum is 45.

The square root of 117878742 is about 10857.1977047487. The cubic root of 117878742 is about 490.3187458243.

The spelling of 117878742 in words is "one hundred seventeen million, eight hundred seventy-eight thousand, seven hundred forty-two".