87473963683431 has 12 divisors (see below), whose sum is σ = 136070610174408. Its totient is φ = 53830131497424.

The previous prime is 87473963683427. The next prime is 87473963683441. The reversal of 87473963683431 is 13438636937478.

87473963683431 is a `hidden beast` number, since 8 + 7 + 4 + 73 + 9 + 63 + 68 + 3 + 431 = 666.

It is not a de Polignac number, because 87473963683431 - 2² = 87473963683427 is a prime.

It is a super-2 number, since 2×87473963683431² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87473963683431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87473963683441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 373820357505 + ... + 373820357738.

It is an arithmetic number, because the mean of its divisors is an integer number (11339217514534).

Almost surely, 2^{87473963683431} is an apocalyptic number.

87473963683431 is a deficient number, since it is larger than the sum of its proper divisors (48596646490977).

87473963683431 is a wasteful number, since it uses less digits than its factorization.

87473963683431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747640715262 (or 747640715259 counting only the distinct ones).

The product of its digits is 1316818944, while the sum is 72.

The spelling of 87473963683431 in words is "eighty-seven trillion, four hundred seventy-three billion, nine hundred sixty-three million, six hundred eighty-three thousand, four hundred thirty-one".