68954924487 has 8 divisors (see below), whose sum is σ = 91992958704. Its totient is φ = 45943419968.

The previous prime is 68954924461. The next prime is 68954924501. The reversal of 68954924487 is 78442945986.

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

It is a cyclic number.

It is not a de Polignac number, because 68954924487 - 2⁸ = 68954924231 is a prime.

It is a super-2 number, since 2×68954924487² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68954924287) 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, 6626358 + ... + 6636755.

It is an arithmetic number, because the mean of its divisors is an integer number (11499119838).

Almost surely, 2^68954924487 is an apocalyptic number.

68954924487 is a deficient number, since it is larger than the sum of its proper divisors (23038034217).

68954924487 is a wasteful number, since it uses less digits than its factorization.

68954924487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13264849.

The product of its digits is 139345920, while the sum is 66.

The spelling of 68954924487 in words is "sixty-eight billion, nine hundred fifty-four million, nine hundred twenty-four thousand, four hundred eighty-seven".