68454371453131 has 4 divisors (see below), whose sum is σ = 70046333579992. Its totient is φ = 66862409326272.

The previous prime is 68454371453119. The next prime is 68454371453201. The reversal of 68454371453131 is 13135417345486.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68454371453131 - 2¹¹ = 68454371451083 is a prime.

It is a super-2 number, since 2×68454371453131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68454371453101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795981063366 + ... + 795981063451.

It is an arithmetic number, because the mean of its divisors is an integer number (17511583394998).

Almost surely, 2^{68454371453131} is an apocalyptic number.

68454371453131 is a deficient number, since it is larger than the sum of its proper divisors (1591962126861).

68454371453131 is a wasteful number, since it uses less digits than its factorization.

68454371453131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591962126860.

The product of its digits is 14515200, while the sum is 55.

The spelling of 68454371453131 in words is "sixty-eight trillion, four hundred fifty-four billion, three hundred seventy-one million, four hundred fifty-three thousand, one hundred thirty-one".