43750377642 has 64 divisors (see below), whose sum is σ = 94289163264. Its totient is φ = 13483841280.

The previous prime is 43750377641. The next prime is 43750377647. The reversal of 43750377642 is 24677305734.

It is a happy number.

It is a super-2 number, since 2×43750377642² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43750377591 and 43750377600.

It is not an unprimeable number, because it can be changed into a prime (43750377641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2038813 + ... + 2060159.

It is an arithmetic number, because the mean of its divisors is an integer number (1473268176).

Almost surely, 2^43750377642 is an apocalyptic number.

43750377642 is an abundant number, since it is smaller than the sum of its proper divisors (50538785622).

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

43750377642 is a wasteful number, since it uses less digits than its factorization.

43750377642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21723.

The product of its (nonzero) digits is 2963520, while the sum is 48.

The spelling of 43750377642 in words is "forty-three billion, seven hundred fifty million, three hundred seventy-seven thousand, six hundred forty-two".