70978550724 has 225 divisors, whose sum is σ = 200753909741. Its totient is φ = 21867589440.

The previous prime is 70978550717. The next prime is 70978550761. The reversal of 70978550724 is 42705587907.

It is a happy number.

The square root of 70978550724 is 266418.

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., 3420144324 + 67558406400 = 58482^2 + 259920^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Duffinian number.

It is an unprimeable number.

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 74 ways as a sum of consecutive naturals, for example, 1731184144 + ... + 1731184184.

Almost surely, 2^70978550724 is an apocalyptic number.

70978550724 is the 266418-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70978550724

70978550724 is an abundant number, since it is smaller than the sum of its proper divisors (129775359017).

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

70978550724 is an frugal number, since it uses more digits than its factorization.

70978550724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 4939200, while the sum is 54.

The spelling of 70978550724 in words is "seventy billion, nine hundred seventy-eight million, five hundred fifty thousand, seven hundred twenty-four".