74693897070 has 128 divisors (see below), whose sum is σ = 194879720448. Its totient is φ = 18213120000.

The previous prime is 74693897023. The next prime is 74693897077. The reversal of 74693897070 is 7079839647.

It is a junction number, because it is equal to n+sod(n) for n = 74693896995 and 74693897013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74693897077) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23613309 + ... + 23616471.

It is an arithmetic number, because the mean of its divisors is an integer number (1522497816).

Almost surely, 2^74693897070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74693897070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97439860224).

74693897070 is an abundant number, since it is smaller than the sum of its proper divisors (120185823378).

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

74693897070 is a wasteful number, since it uses less digits than its factorization.

74693897070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738.

The product of its (nonzero) digits is 16003008, while the sum is 60.

The spelling of 74693897070 in words is "seventy-four billion, six hundred ninety-three million, eight hundred ninety-seven thousand, seventy".