7578364540 has 24 divisors (see below), whose sum is σ = 15916476240. Its totient is φ = 3030981888.

The previous prime is 7578364523. The next prime is 7578364579. The reversal of 7578364540 is 454638757.

It is a super-2 number, since 2×7578364540² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 202324 + ... + 236836.

It is an arithmetic number, because the mean of its divisors is an integer number (663186510).

Almost surely, 2^7578364540 is an apocalyptic number.

It is an amenable number.

7578364540 is an abundant number, since it is smaller than the sum of its proper divisors (8338111700).

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

7578364540 is a wasteful number, since it uses less digits than its factorization.

7578364540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45501 (or 45499 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 49.

The square root of 7578364540 is about 87053.8025591071. The cubic root of 7578364540 is about 1964.2276975469.

The spelling of 7578364540 in words is "seven billion, five hundred seventy-eight million, three hundred sixty-four thousand, five hundred forty".