70451293921 has 8 divisors (see below), whose sum is σ = 70820074080. Its totient is φ = 70083026688.

The previous prime is 70451293897. The next prime is 70451293931. The reversal of 70451293921 is 12939215407.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70451293921 - 2¹⁹ = 70450769633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70451293931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148750 + ... + 403768.

It is an arithmetic number, because the mean of its divisors is an integer number (8852509260).

Almost surely, 2^70451293921 is an apocalyptic number.

It is an amenable number.

70451293921 is a deficient number, since it is larger than the sum of its proper divisors (368780159).

70451293921 is a wasteful number, since it uses less digits than its factorization.

70451293921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256463.

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 70451293921 in words is "seventy billion, four hundred fifty-one million, two hundred ninety-three thousand, nine hundred twenty-one".