43198457061 has 4 divisors (see below), whose sum is σ = 57597942752. Its totient is φ = 28798971372.

The previous prime is 43198457059. The next prime is 43198457063. The reversal of 43198457061 is 16075489134.

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 an interprime number because it is at equal distance from previous prime (43198457059) and next prime (43198457063).

It is not a de Polignac number, because 43198457061 - 2¹ = 43198457059 is a prime.

It is a super-2 number, since 2×43198457061² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43198457061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43198457063) 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, 7199742841 + ... + 7199742846.

It is an arithmetic number, because the mean of its divisors is an integer number (14399485688).

Almost surely, 2^43198457061 is an apocalyptic number.

It is an amenable number.

43198457061 is a deficient number, since it is larger than the sum of its proper divisors (14399485691).

43198457061 is a wasteful number, since it uses less digits than its factorization.

43198457061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14399485690.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 43198457061 in words is "forty-three billion, one hundred ninety-eight million, four hundred fifty-seven thousand, sixty-one".