68465903902 has 16 divisors (see below), whose sum is σ = 115898396400. Its totient is φ = 30047731840.

The previous prime is 68465903897. The next prime is 68465903903. The reversal of 68465903902 is 20930956486.

It is a self number, because there is not a number n which added to its sum of digits gives 68465903902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68465903903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53656027 + ... + 53657302.

It is an arithmetic number, because the mean of its divisors is an integer number (7243649775).

Almost surely, 2^68465903902 is an apocalyptic number.

68465903902 is a deficient number, since it is larger than the sum of its proper divisors (47432492498).

68465903902 is a wasteful number, since it uses less digits than its factorization.

68465903902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107313371.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 68465903902 in words is "sixty-eight billion, four hundred sixty-five million, nine hundred three thousand, nine hundred two".