51011236123859 has 8 divisors (see below), whose sum is σ = 55651600657920. Its totient is φ = 46371368161800.

The previous prime is 51011236123849. The next prime is 51011236123877. The reversal of 51011236123859 is 95832163211015.

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

It is not a de Polignac number, because 51011236123859 - 2¹² = 51011236119763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51011236123849) 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, 123928187 + ... + 124339124.

It is an arithmetic number, because the mean of its divisors is an integer number (6956450082240).

Almost surely, 2^{51011236123859} is an apocalyptic number.

51011236123859 is a deficient number, since it is larger than the sum of its proper divisors (4640364534061).

51011236123859 is a wasteful number, since it uses less digits than its factorization.

51011236123859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248286001.

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 51011236123859 in words is "fifty-one trillion, eleven billion, two hundred thirty-six million, one hundred twenty-three thousand, eight hundred fifty-nine".