768193650 has 72 divisors (see below), whose sum is σ = 2358729984. Its totient is φ = 175586400.

The previous prime is 768193649. The next prime is 768193669. The reversal of 768193650 is 56391867.

768193650 = 5321² + 5322² + ... + 5347².

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 768193596 and 768193605.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 118786 + ... + 125085.

Almost surely, 2^768193650 is an apocalyptic number.

768193650 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

768193650 is an abundant number, since it is smaller than the sum of its proper divisors (1590536334).

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

768193650 is a wasteful number, since it uses less digits than its factorization.

768193650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243896 (or 243888 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 768193650 is about 27716.3065721246. The cubic root of 768193650 is about 915.8483576830.

The spelling of 768193650 in words is "seven hundred sixty-eight million, one hundred ninety-three thousand, six hundred fifty".