5217621970 has 32 divisors (see below), whose sum is σ = 10522426176. Its totient is φ = 1846036800.

The previous prime is 5217621961. The next prime is 5217621979. The reversal of 5217621970 is 791267125.

It is an interprime number because it is at equal distance from previous prime (5217621961) and next prime (5217621979).

It is not an unprimeable number, because it can be changed into a prime (5217621979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636916 + ... + 645055.

It is an arithmetic number, because the mean of its divisors is an integer number (328825818).

Almost surely, 2^5217621970 is an apocalyptic number.

5217621970 is an abundant number, since it is smaller than the sum of its proper divisors (5304804206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5217621970 is a wasteful number, since it uses less digits than its factorization.

5217621970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282026.

The product of its (nonzero) digits is 52920, while the sum is 40.

The square root of 5217621970 is about 72233.1085444895. The cubic root of 5217621970 is about 1734.4330348548.

The spelling of 5217621970 in words is "five billion, two hundred seventeen million, six hundred twenty-one thousand, nine hundred seventy".