421191698070 has 256 divisors, whose sum is σ = 1237391769600. Its totient is φ = 90356774400.

The previous prime is 421191698069. The next prime is 421191698093. The reversal of 421191698070 is 70896191124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14215131 + ... + 14244729.

It is an arithmetic number, because the mean of its divisors is an integer number (4833561600).

Almost surely, 2^421191698070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421191698070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (618695884800).

421191698070 is an abundant number, since it is smaller than the sum of its proper divisors (816200071530).

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

421191698070 is a wasteful number, since it uses less digits than its factorization.

421191698070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29771.

The product of its (nonzero) digits is 217728, while the sum is 48.

The spelling of 421191698070 in words is "four hundred twenty-one billion, one hundred ninety-one million, six hundred ninety-eight thousand, seventy".