4971522915 has 24 divisors (see below), whose sum is σ = 8646739920. Its totient is φ = 2642422464.

The previous prime is 4971522911. The next prime is 4971522931. The reversal of 4971522915 is 5192251794.

4971522915 is a `hidden beast` number, since 49 + 71 + 522 + 9 + 15 = 666.

It is not a de Polignac number, because 4971522915 - 2² = 4971522911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (4971522911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175345 + ... + 201714.

It is an arithmetic number, because the mean of its divisors is an integer number (360280830).

Almost surely, 2^4971522915 is an apocalyptic number.

4971522915 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4971522915 is a deficient number, since it is larger than the sum of its proper divisors (3675217005).

4971522915 is a wasteful number, since it uses less digits than its factorization.

4971522915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377363 (or 377360 counting only the distinct ones).

The product of its digits is 226800, while the sum is 45.

The square root of 4971522915 is about 70509.0271880133. The cubic root of 4971522915 is about 1706.7234219856.

The spelling of 4971522915 in words is "four billion, nine hundred seventy-one million, five hundred twenty-two thousand, nine hundred fifteen".