87497199837 has 8 divisors (see below), whose sum is σ = 129625481280. Its totient is φ = 58331466540.

The previous prime is 87497199799. The next prime is 87497199847. The reversal of 87497199837 is 73899179478.

87497199837 is a `hidden beast` number, since 8 + 7 + 497 + 19 + 98 + 37 = 666.

It is not a de Polignac number, because 87497199837 - 2¹² = 87497195741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87497199847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1620318489 + ... + 1620318542.

It is an arithmetic number, because the mean of its divisors is an integer number (16203185160).

Almost surely, 2^87497199837 is an apocalyptic number.

It is an amenable number.

87497199837 is a deficient number, since it is larger than the sum of its proper divisors (42128281443).

87497199837 is a wasteful number, since it uses less digits than its factorization.

87497199837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240637040 (or 3240637034 counting only the distinct ones).

The product of its digits is 192036096, while the sum is 72.

The spelling of 87497199837 in words is "eighty-seven billion, four hundred ninety-seven million, one hundred ninety-nine thousand, eight hundred thirty-seven".