49640923404 has 18 divisors (see below), whose sum is σ = 125481223140. Its totient is φ = 16546974456.

The previous prime is 49640923403. The next prime is 49640923411. The reversal of 49640923404 is 40432904694.

49640923404 is a `hidden beast` number, since 4 + 9 + 6 + 409 + 234 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 49640923404.

It is not an unprimeable number, because it can be changed into a prime (49640923403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 689457234 + ... + 689457305.

Almost surely, 2^49640923404 is an apocalyptic number.

It is an amenable number.

49640923404 is an abundant number, since it is smaller than the sum of its proper divisors (75840299736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49640923404 is a wasteful number, since it uses less digits than its factorization.

49640923404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378914549 (or 1378914544 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The spelling of 49640923404 in words is "forty-nine billion, six hundred forty million, nine hundred twenty-three thousand, four hundred four".