87403685690 has 32 divisors (see below), whose sum is σ = 157892582016. Its totient is φ = 34835796160.

The previous prime is 87403685669. The next prime is 87403685729. The reversal of 87403685690 is 9658630478.

It is a super-2 number, since 2×87403685690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14436704 + ... + 14442756.

It is an arithmetic number, because the mean of its divisors is an integer number (4934143188).

Almost surely, 2^87403685690 is an apocalyptic number.

87403685690 is a deficient number, since it is larger than the sum of its proper divisors (70488896326).

87403685690 is a wasteful number, since it uses less digits than its factorization.

87403685690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11014.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 87403685690 in words is "eighty-seven billion, four hundred three million, six hundred eighty-five thousand, six hundred ninety".