140437431634 has 16 divisors (see below), whose sum is σ = 211412378880. Its totient is φ = 69967022400.

The previous prime is 140437431593. The next prime is 140437431643. The reversal of 140437431634 is 436134734041.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641767 + ... + 832309.

It is an arithmetic number, because the mean of its divisors is an integer number (13213273680).

Almost surely, 2^140437431634 is an apocalyptic number.

140437431634 is a deficient number, since it is larger than the sum of its proper divisors (70974947246).

140437431634 is a wasteful number, since it uses less digits than its factorization.

140437431634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191865.

The product of its (nonzero) digits is 290304, while the sum is 40.

The spelling of 140437431634 in words is "one hundred forty billion, four hundred thirty-seven million, four hundred thirty-one thousand, six hundred thirty-four".