70001438357 has 4 divisors (see below), whose sum is σ = 70050632640. Its totient is φ = 69952244076.

The previous prime is 70001438333. The next prime is 70001438371. The reversal of 70001438357 is 75383410007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70001438357 - 2¹⁸ = 70001176213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70001438357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70001438317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24595007 + ... + 24597852.

It is an arithmetic number, because the mean of its divisors is an integer number (17512658160).

Almost surely, 2^70001438357 is an apocalyptic number.

It is an amenable number.

70001438357 is a deficient number, since it is larger than the sum of its proper divisors (49194283).

70001438357 is a wasteful number, since it uses less digits than its factorization.

70001438357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49194282.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 70001438357 in words is "seventy billion, one million, four hundred thirty-eight thousand, three hundred fifty-seven".