87738773786 has 16 divisors (see below), whose sum is σ = 134141746464. Its totient is φ = 43025480784.

The previous prime is 87738773741. The next prime is 87738773789. The reversal of 87738773786 is 68737783778.

It is not an unprimeable number, because it can be changed into a prime (87738773789) 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, 130145 + ... + 438651.

It is an arithmetic number, because the mean of its divisors is an integer number (8383859154).

Almost surely, 2^87738773786 is an apocalyptic number.

87738773786 is a deficient number, since it is larger than the sum of its proper divisors (46402972678).

87738773786 is a wasteful number, since it uses less digits than its factorization.

87738773786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311245.

The product of its digits is 464679936, while the sum is 71.

The spelling of 87738773786 in words is "eighty-seven billion, seven hundred thirty-eight million, seven hundred seventy-three thousand, seven hundred eighty-six".