37872614461 has 4 divisors (see below), whose sum is σ = 41315579424. Its totient is φ = 34429649500.

The previous prime is 37872614449. The next prime is 37872614489. The reversal of 37872614461 is 16441627873.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16441627873 = 11 ⋅1494693443.

It is a cyclic number.

It is not a de Polignac number, because 37872614461 - 2¹³ = 37872606269 is a prime.

It is a super-2 number, since 2×37872614461² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37872614261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1721482465 + ... + 1721482486.

It is an arithmetic number, because the mean of its divisors is an integer number (10328894856).

Almost surely, 2^37872614461 is an apocalyptic number.

It is an amenable number.

37872614461 is a deficient number, since it is larger than the sum of its proper divisors (3442964963).

37872614461 is a wasteful number, since it uses less digits than its factorization.

37872614461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442964962.

The product of its digits is 1354752, while the sum is 49.

The spelling of 37872614461 in words is "thirty-seven billion, eight hundred seventy-two million, six hundred fourteen thousand, four hundred sixty-one".