68037451534 has 32 divisors (see below), whose sum is σ = 111130729920. Its totient is φ = 31052928000.

The previous prime is 68037451523. The next prime is 68037451549. The reversal of 68037451534 is 43515473086.

It is a super-2 number, since 2×68037451534² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2187774 + ... + 2218654.

It is an arithmetic number, because the mean of its divisors is an integer number (3472835310).

Almost surely, 2^68037451534 is an apocalyptic number.

68037451534 is a deficient number, since it is larger than the sum of its proper divisors (43093278386).

68037451534 is a wasteful number, since it uses less digits than its factorization.

68037451534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31836.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 68037451534 in words is "sixty-eight billion, thirty-seven million, four hundred fifty-one thousand, five hundred thirty-four".