47487840155 has 24 divisors (see below), whose sum is σ = 66332473200. Its totient is φ = 32541808320.

The previous prime is 47487840121. The next prime is 47487840161. The reversal of 47487840155 is 55104878474.

It is not a de Polignac number, because 47487840155 - 2⁶ = 47487840091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47487840097 and 47487840106.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 316940 + ... + 442070.

It is an arithmetic number, because the mean of its divisors is an integer number (2763853050).

Almost surely, 2^47487840155 is an apocalyptic number.

47487840155 is a deficient number, since it is larger than the sum of its proper divisors (18844633045).

47487840155 is a wasteful number, since it uses less digits than its factorization.

47487840155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126699 (or 126692 counting only the distinct ones).

The product of its (nonzero) digits is 5017600, while the sum is 53.

The spelling of 47487840155 in words is "forty-seven billion, four hundred eighty-seven million, eight hundred forty thousand, one hundred fifty-five".