21873885355070 has 16 divisors (see below), whose sum is σ = 44997707016288. Its totient is φ = 7499617836000.

The previous prime is 21873885355067. The next prime is 21873885355073. The reversal of 21873885355070 is 7055358837812.

It is an interprime number because it is at equal distance from previous prime (21873885355067) and next prime (21873885355073).

It is a junction number, because it is equal to n+sod(n) for n = 21873885354994 and 21873885355012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21873885355073) 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, 156242038181 + ... + 156242038320.

It is an arithmetic number, because the mean of its divisors is an integer number (2812356688518).

Almost surely, 2^{21873885355070} is an apocalyptic number.

21873885355070 is an abundant number, since it is smaller than the sum of its proper divisors (23123821661218).

21873885355070 is a wasteful number, since it uses less digits than its factorization.

21873885355070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312484076515.

The product of its (nonzero) digits is 56448000, while the sum is 62.

The spelling of 21873885355070 in words is "twenty-one trillion, eight hundred seventy-three billion, eight hundred eighty-five million, three hundred fifty-five thousand, seventy".