20514913047 has 24 divisors (see below), whose sum is σ = 31478022576. Its totient is φ = 12830144256.

The previous prime is 20514913037. The next prime is 20514913057. The reversal of 20514913047 is 74031941502.

20514913047 is a `hidden beast` number, since 2 + 0 + 514 + 9 + 130 + 4 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (20514913037) and next prime (20514913057).

It is not a de Polignac number, because 20514913047 - 2⁶ = 20514912983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514913037) 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, 171408 + ... + 265349.

It is an arithmetic number, because the mean of its divisors is an integer number (1311584274).

Almost surely, 2^20514913047 is an apocalyptic number.

20514913047 is a deficient number, since it is larger than the sum of its proper divisors (10963109529).

20514913047 is a wasteful number, since it uses less digits than its factorization.

20514913047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437087 (or 437084 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 20514913047 in words is "twenty billion, five hundred fourteen million, nine hundred thirteen thousand, forty-seven".