50431114181990 has 64 divisors (see below), whose sum is σ = 94200806952000. Its totient is φ = 19415794245120.

The previous prime is 50431114181953. The next prime is 50431114182023. The reversal of 50431114181990 is 9918141113405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 222894320 + ... + 223120460.

It is an arithmetic number, because the mean of its divisors is an integer number (1471887608625).

Almost surely, 2^{50431114181990} is an apocalyptic number.

50431114181990 is a deficient number, since it is larger than the sum of its proper divisors (43769692770010).

50431114181990 is a wasteful number, since it uses less digits than its factorization.

50431114181990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228585.

The product of its (nonzero) digits is 155520, while the sum is 47.

The spelling of 50431114181990 in words is "fifty trillion, four hundred thirty-one billion, one hundred fourteen million, one hundred eighty-one thousand, nine hundred ninety".