68702997619420 has 24 divisors (see below), whose sum is σ = 144276532901424. Its totient is φ = 27481153733376.

The previous prime is 68702997619409. The next prime is 68702997619591. The reversal of 68702997619420 is 2491679920786.

It is a super-2 number, since 2×68702997619420² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68702997619420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11326647 + ... + 16300273.

It is an arithmetic number, because the mean of its divisors is an integer number (6011522204226).

Almost surely, 2^{68702997619420} is an apocalyptic number.

It is an amenable number.

68702997619420 is an abundant number, since it is smaller than the sum of its proper divisors (75573535282004).

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

68702997619420 is a wasteful number, since it uses less digits than its factorization.

68702997619420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5664309 (or 5664307 counting only the distinct ones).

The product of its (nonzero) digits is 164602368, while the sum is 70.

The spelling of 68702997619420 in words is "sixty-eight trillion, seven hundred two billion, nine hundred ninety-seven million, six hundred nineteen thousand, four hundred twenty".