70372947841 has 9 divisors (see below), whose sum is σ = 81864568899. Its totient is φ = 60318077904.

The previous prime is 70372947833. The next prime is 70372947847. The reversal of 70372947841 is 14874927307.

It is a happy number.

The square root of 70372947841 is 265279.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 626250625 + 69746697216 = 25025^2 + 264096^2 .

It is not a de Polignac number, because 70372947841 - 2³ = 70372947833 is a prime.

It is a super-2 number, since 2×70372947841² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70372947847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1838005 + ... + 1875901.

It is an arithmetic number, because the mean of its divisors is an integer number (9096063211).

Almost surely, 2^70372947841 is an apocalyptic number.

70372947841 is the 265279-th square number.

70372947841 is the 132640-th centered octagonal number.

It is an amenable number.

70372947841 is a deficient number, since it is larger than the sum of its proper divisors (11491621058).

70372947841 is an frugal number, since it uses more digits than its factorization.

70372947841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75808 (or 37904 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 52.

The spelling of 70372947841 in words is "seventy billion, three hundred seventy-two million, nine hundred forty-seven thousand, eight hundred forty-one".