117777647650 has 48 divisors (see below), whose sum is σ = 236391120000. Its totient is φ = 43399863360.

The previous prime is 117777647629. The next prime is 117777647671. The reversal of 117777647650 is 56746777711.

It is an interprime number because it is at equal distance from previous prime (117777647629) and next prime (117777647671).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142791 + ... + 505909.

It is an arithmetic number, because the mean of its divisors is an integer number (4924815000).

Almost surely, 2^117777647650 is an apocalyptic number.

117777647650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117777647650 is an abundant number, since it is smaller than the sum of its proper divisors (118613472350).

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

117777647650 is a wasteful number, since it uses less digits than its factorization.

117777647650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363643 (or 363638 counting only the distinct ones).

The product of its (nonzero) digits is 12101040, while the sum is 58.

The spelling of 117777647650 in words is "one hundred seventeen billion, seven hundred seventy-seven million, six hundred forty-seven thousand, six hundred fifty".