947973205415 has 4 divisors (see below), whose sum is σ = 1137567846504. Its totient is φ = 758378564328.

The previous prime is 947973205373. The next prime is 947973205453. The reversal of 947973205415 is 514502379749.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 514502379749 = 149161 ⋅3449309.

It is a cyclic number.

It is not a de Polignac number, because 947973205415 - 2²² = 947969011111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94797320537 + ... + 94797320546.

It is an arithmetic number, because the mean of its divisors is an integer number (284391961626).

Almost surely, 2^947973205415 is an apocalyptic number.

947973205415 is a deficient number, since it is larger than the sum of its proper divisors (189594641089).

947973205415 is a wasteful number, since it uses less digits than its factorization.

947973205415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189594641088.

The product of its (nonzero) digits is 9525600, while the sum is 56.

The spelling of 947973205415 in words is "nine hundred forty-seven billion, nine hundred seventy-three million, two hundred five thousand, four hundred fifteen".