53172000784 has 160 divisors (see below), whose sum is σ = 128617410816. Its totient is φ = 20778024960.

The previous prime is 53172000769. The next prime is 53172000787. The reversal of 53172000784 is 48700027135.

53172000784 = T₁ + T₂ + ... + T₆₈₃₂.

53172000784 is a nontrivial binomial coefficient, being equal to C(6834, 3).

It is a super-2 number, since 2×53172000784² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53172000787) by changing a digit.

It is the 6832-nd tetrahedral number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7778232 + ... + 7785064.

Almost surely, 2^53172000784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53172000784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64308705408).

53172000784 is an abundant number, since it is smaller than the sum of its proper divisors (75445410032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53172000784 is a wasteful number, since it uses less digits than its factorization.

53172000784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6993 (or 6987 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 53172000784 in words is "fifty-three billion, one hundred seventy-two million, seven hundred eighty-four", and thus it is an aban number.