73878487837 has 16 divisors (see below), whose sum is σ = 95079481344. Its totient is φ = 55710630000.

The previous prime is 73878487807. The next prime is 73878487847.

73878487837 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 73878487837 - 2¹⁵ = 73878455069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73878487807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15472789 + ... + 15477562.

It is an arithmetic number, because the mean of its divisors is an integer number (5942467584).

Almost surely, 2^73878487837 is an apocalyptic number.

73878487837 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

73878487837 is a deficient number, since it is larger than the sum of its proper divisors (21200993507).

73878487837 is a wasteful number, since it uses less digits than its factorization.

73878487837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30950400.

The product of its digits is 354041856, while the sum is 70.

The spelling of 73878487837 in words is "seventy-three billion, eight hundred seventy-eight million, four hundred eighty-seven thousand, eight hundred thirty-seven".