70172362500020 has 48 divisors (see below), whose sum is σ = 161369752376448. Its totient is φ = 25420199045760.

The previous prime is 70172362500001. The next prime is 70172362500029. The reversal of 70172362500020 is 2000526327107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70172362500029) 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, 606340019 + ... + 606455738.

It is an arithmetic number, because the mean of its divisors is an integer number (3361869841176).

Almost surely, 2^{70172362500020} is an apocalyptic number.

It is an amenable number.

70172362500020 is an abundant number, since it is smaller than the sum of its proper divisors (91197389876428).

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

70172362500020 is a wasteful number, since it uses less digits than its factorization.

70172362500020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212796040 (or 1212796038 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

Adding to 70172362500020 its reverse (2000526327107), we get a palindrome (72172888827127).

The spelling of 70172362500020 in words is "seventy trillion, one hundred seventy-two billion, three hundred sixty-two million, five hundred thousand, twenty".