68923019 has 8 divisors (see below), whose sum is σ = 78458112. Its totient is φ = 59932840.

The previous prime is 68922991. The next prime is 68923039. The reversal of 68923019 is 91032986.

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

It is not a de Polignac number, because 68923019 - 2¹² = 68918923 is a prime.

It is a super-2 number, since 2×68923019² = 9500765096148722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68923039) 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, 135959 + ... + 136464.

It is an arithmetic number, because the mean of its divisors is an integer number (9807264).

Almost surely, 2^68923019 is an apocalyptic number.

68923019 is a deficient number, since it is larger than the sum of its proper divisors (9535093).

68923019 is a wasteful number, since it uses less digits than its factorization.

68923019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272457.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 68923019 is about 8301.9888580990. The cubic root of 68923019 is about 410.0040035302.

The spelling of 68923019 in words is "sixty-eight million, nine hundred twenty-three thousand, nineteen".