47501617951 has 12 divisors (see below), whose sum is σ = 49670181288. Its totient is φ = 45423996464.

The previous prime is 47501617903. The next prime is 47501618023. The reversal of 47501617951 is 15971610574.

It is not a de Polignac number, because 47501617951 - 2²¹ = 47499520799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47501017951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2382741 + ... + 2402593.

It is an arithmetic number, because the mean of its divisors is an integer number (4139181774).

Almost surely, 2^47501617951 is an apocalyptic number.

47501617951 is a deficient number, since it is larger than the sum of its proper divisors (2168563337).

47501617951 is a wasteful number, since it uses less digits than its factorization.

47501617951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24422 (or 24399 counting only the distinct ones).

The product of its (nonzero) digits is 264600, while the sum is 46.

It can be divided in two parts, 4750 and 1617951, that added together give a triangular number (1622701 = T₁₈₀₁).

The spelling of 47501617951 in words is "forty-seven billion, five hundred one million, six hundred seventeen thousand, nine hundred fifty-one".