70421495424 has 384 divisors, whose sum is σ = 230192539200. Its totient is φ = 18966528000.

The previous prime is 70421495423. The next prime is 70421495461. The reversal of 70421495424 is 42459412407.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (70421495423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 100458274 + ... + 100458974.

Almost surely, 2^70421495424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70421495424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115096269600).

70421495424 is an abundant number, since it is smaller than the sum of its proper divisors (159771043776).

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

70421495424 is a wasteful number, since it uses less digits than its factorization.

70421495424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032 (or 1013 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 70421495424 in words is "seventy billion, four hundred twenty-one million, four hundred ninety-five thousand, four hundred twenty-four".