8370521961 has 8 divisors (see below), whose sum is σ = 11161593120. Its totient is φ = 5579899392.

The previous prime is 8370521959. The next prime is 8370521963. The reversal of 8370521961 is 1691250738.

It is an interprime number because it is at equal distance from previous prime (8370521959) and next prime (8370521963).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8370521961 - 2¹ = 8370521959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8370521963) 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, 65880 + ... + 145193.

It is an arithmetic number, because the mean of its divisors is an integer number (1395199140).

Almost surely, 2^8370521961 is an apocalyptic number.

It is an amenable number.

8370521961 is a deficient number, since it is larger than the sum of its proper divisors (2791071159).

8370521961 is a wasteful number, since it uses less digits than its factorization.

8370521961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224295.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 8370521961 is about 91490.5566766319. The cubic root of 8370521961 is about 2030.4120400065.

The spelling of 8370521961 in words is "eight billion, three hundred seventy million, five hundred twenty-one thousand, nine hundred sixty-one".