43138458792 has 256 divisors, whose sum is σ = 141466752000. Its totient is φ = 12007699200.

The previous prime is 43138458733. The next prime is 43138458799. The reversal of 43138458792 is 29785483134.

It is a happy number.

43138458792 is a `hidden beast` number, since 43 + 13 + 8 + 4 + 587 + 9 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (43138458799) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6514059 + ... + 6520677.

It is an arithmetic number, because the mean of its divisors is an integer number (552604500).

Almost surely, 2^43138458792 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 43138458792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70733376000).

43138458792 is an abundant number, since it is smaller than the sum of its proper divisors (98328293208).

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

43138458792 is a wasteful number, since it uses less digits than its factorization.

43138458792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6869 (or 6859 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 43138458792 in words is "forty-three billion, one hundred thirty-eight million, four hundred fifty-eight thousand, seven hundred ninety-two".