51042001493 has 8 divisors (see below), whose sum is σ = 60345223680. Its totient is φ = 42241656240.

The previous prime is 51042001481. The next prime is 51042001523. The reversal of 51042001493 is 39410024015.

51042001493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51042001493 - 2⁶ = 51042001429 is a prime.

It is a super-2 number, since 2×51042001493² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51042001403) 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, 125719013 + ... + 125719418.

It is an arithmetic number, because the mean of its divisors is an integer number (7543152960).

Almost surely, 2^51042001493 is an apocalyptic number.

It is an amenable number.

51042001493 is a deficient number, since it is larger than the sum of its proper divisors (9303222187).

51042001493 is a wasteful number, since it uses less digits than its factorization.

51042001493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251438467.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 51042001493 in words is "fifty-one billion, forty-two million, one thousand, four hundred ninety-three".