50487432691 has 32 divisors (see below), whose sum is σ = 53877948416. Its totient is φ = 47239200000.

The previous prime is 50487432673. The next prime is 50487432707. The reversal of 50487432691 is 19623478405.

It is a happy number.

50487432691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a 10-Lehmer number, since φ(50487432691) divides (50487432691-1)¹⁰.

It is a cyclic number.

It is not a de Polignac number, because 50487432691 - 2⁷ = 50487432563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50487432601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67226566 + ... + 67227316.

It is an arithmetic number, because the mean of its divisors is an integer number (1683685888).

It is a 3-persistent number, because k⋅50487432691 is pandigital for 1 ≤ k ≤ 3, but not for k = 4.

Almost surely, 2^50487432691 is an apocalyptic number.

50487432691 is a deficient number, since it is larger than the sum of its proper divisors (3390515725).

50487432691 is a wasteful number, since it uses less digits than its factorization.

50487432691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 50487432691 in words is "fifty billion, four hundred eighty-seven million, four hundred thirty-two thousand, six hundred ninety-one".