43213238877 has 4 divisors (see below), whose sum is σ = 57617651840. Its totient is φ = 28808825916.

The previous prime is 43213238851. The next prime is 43213238881. The reversal of 43213238877 is 77883231234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43213238877 - 2¹² = 43213234781 is a prime.

It is a super-2 number, since 2×43213238877² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43213238377) 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, 7202206477 + ... + 7202206482.

It is an arithmetic number, because the mean of its divisors is an integer number (14404412960).

Almost surely, 2^43213238877 is an apocalyptic number.

It is an amenable number.

43213238877 is a deficient number, since it is larger than the sum of its proper divisors (14404412963).

43213238877 is a wasteful number, since it uses less digits than its factorization.

43213238877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14404412962.

The product of its digits is 1354752, while the sum is 48.

The spelling of 43213238877 in words is "forty-three billion, two hundred thirteen million, two hundred thirty-eight thousand, eight hundred seventy-seven".