5155042640 has 40 divisors (see below), whose sum is σ = 13075064928. Its totient is φ = 1874560640.

The previous prime is 5155042637. The next prime is 5155042643. The reversal of 5155042640 is 462405515.

It is an interprime number because it is at equal distance from previous prime (5155042637) and next prime (5155042643).

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 5155042597 and 5155042606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155042643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2928122 + ... + 2929881.

Almost surely, 2^5155042640 is an apocalyptic number.

It is an amenable number.

5155042640 is an abundant number, since it is smaller than the sum of its proper divisors (7920022288).

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

5155042640 is a wasteful number, since it uses less digits than its factorization.

5155042640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858027 (or 5858021 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 5155042640 is about 71798.6256135868. The cubic root of 5155042640 is about 1727.4709546561.

The spelling of 5155042640 in words is "five billion, one hundred fifty-five million, forty-two thousand, six hundred forty".