87351964202 has 4 divisors (see below), whose sum is σ = 131027946306. Its totient is φ = 43675982100.

The previous prime is 87351964187. The next prime is 87351964211. The reversal of 87351964202 is 20246915378.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20246915378 = 2 ⋅10123457689.

It can be written as a sum of positive squares in only one way, i.e., 86717881441 + 634082761 = 294479^2 + 25181^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21837991049 + ... + 21837991052.

It is a 1-persistent number, because it is pandigital, but 2⋅87351964202 = 174703928404 is not.

Almost surely, 2^87351964202 is an apocalyptic number.

87351964202 is a deficient number, since it is larger than the sum of its proper divisors (43675982104).

87351964202 is a wasteful number, since it uses less digits than its factorization.

87351964202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43675982103.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 87351964202 in words is "eighty-seven billion, three hundred fifty-one million, nine hundred sixty-four thousand, two hundred two".