68477920310 has 8 divisors (see below), whose sum is σ = 123260256576. Its totient is φ = 27391168120.

The previous prime is 68477920307. The next prime is 68477920397. The reversal of 68477920310 is 1302977486.

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

It is a super-2 number, since 2×68477920310² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3423896006 + ... + 3423896025.

It is an arithmetic number, because the mean of its divisors is an integer number (15407532072).

Almost surely, 2^68477920310 is an apocalyptic number.

68477920310 is a deficient number, since it is larger than the sum of its proper divisors (54782336266).

68477920310 is a wasteful number, since it uses less digits than its factorization.

68477920310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6847792038.

The product of its (nonzero) digits is 508032, while the sum is 47.

The spelling of 68477920310 in words is "sixty-eight billion, four hundred seventy-seven million, nine hundred twenty thousand, three hundred ten".