70421638530 has 16 divisors (see below), whose sum is σ = 169011932544. Its totient is φ = 18779103600.

The previous prime is 70421638519. The next prime is 70421638541. The reversal of 70421638530 is 3583612407.

It is an interprime number because it is at equal distance from previous prime (70421638519) and next prime (70421638541).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1173693946 + ... + 1173694005.

It is an arithmetic number, because the mean of its divisors is an integer number (10563245784).

Almost surely, 2^70421638530 is an apocalyptic number.

70421638530 is an abundant number, since it is smaller than the sum of its proper divisors (98590294014).

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

70421638530 is a wasteful number, since it uses less digits than its factorization.

70421638530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347387961.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 70421638530 in words is "seventy billion, four hundred twenty-one million, six hundred thirty-eight thousand, five hundred thirty".