50154990987 has 16 divisors (see below), whose sum is σ = 69121647360. Its totient is φ = 32331079200.

The previous prime is 50154990967. The next prime is 50154990997. The reversal of 50154990987 is 78909945105.

It is not a de Polignac number, because 50154990987 - 2²³ = 50146602379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50154990967) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2311839 + ... + 2333432.

It is an arithmetic number, because the mean of its divisors is an integer number (4320102960).

Almost surely, 2^50154990987 is an apocalyptic number.

50154990987 is a deficient number, since it is larger than the sum of its proper divisors (18966656373).

50154990987 is a wasteful number, since it uses less digits than its factorization.

50154990987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4645394.

The product of its (nonzero) digits is 4082400, while the sum is 57.

The spelling of 50154990987 in words is "fifty billion, one hundred fifty-four million, nine hundred ninety thousand, nine hundred eighty-seven".