7139483478 has 32 divisors (see below), whose sum is σ = 15872577120. Its totient is φ = 2378769120.

The previous prime is 7139483471. The next prime is 7139483479. The reversal of 7139483478 is 8743849317.

7139483478 is a `hidden beast` number, since 7 + 1 + 3 + 94 + 83 + 478 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7139483471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98176 + ... + 154652.

It is an arithmetic number, because the mean of its divisors is an integer number (496018035).

Almost surely, 2^7139483478 is an apocalyptic number.

7139483478 is an abundant number, since it is smaller than the sum of its proper divisors (8733093642).

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

7139483478 is a wasteful number, since it uses less digits than its factorization.

7139483478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58829 (or 58823 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 7139483478 is about 84495.4642451298. The cubic root of 7139483478 is about 1925.5535353561.

The spelling of 7139483478 in words is "seven billion, one hundred thirty-nine million, four hundred eighty-three thousand, four hundred seventy-eight".