672354112107437 has 4 divisors (see below), whose sum is σ = 672354199511676. Its totient is φ = 672354024703200.

The previous prime is 672354112107347. The next prime is 672354112107443. The reversal of 672354112107437 is 734701211453276.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 469348437131401 + 203005674976036 = 21664451^2 + 14248006^2 .

It is a cyclic number.

It is not a de Polignac number, because 672354112107437 - 2¹⁸ = 672354111845293 is a prime.

It is a super-3 number, since 3×672354112107437³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672354112107497) 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, 30916568 + ... + 47963969.

It is an arithmetic number, because the mean of its divisors is an integer number (168088549877919).

Almost surely, 2^{672354112107437} is an apocalyptic number.

It is an amenable number.

672354112107437 is a deficient number, since it is larger than the sum of its proper divisors (87404239).

672354112107437 is an equidigital number, since it uses as much as digits as its factorization.

672354112107437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87404238.

The product of its (nonzero) digits is 5927040, while the sum is 53.

The spelling of 672354112107437 in words is "six hundred seventy-two trillion, three hundred fifty-four billion, one hundred twelve million, one hundred seven thousand, four hundred thirty-seven".