1486978506 has 64 divisors (see below), whose sum is σ = 3574247040. Its totient is φ = 455518080.

The previous prime is 1486978501. The next prime is 1486978523. The reversal of 1486978506 is 6058796841.

1486978506 is a `hidden beast` number, since 1 + 4 + 8 + 69 + 78 + 506 = 666.

It is a super-2 number, since 2×1486978506² = 4422210154611984072, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1486978501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159021 + ... + 168111.

It is an arithmetic number, because the mean of its divisors is an integer number (55847610).

Almost surely, 2^1486978506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1486978506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1787123520).

1486978506 is an abundant number, since it is smaller than the sum of its proper divisors (2087268534).

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

1486978506 is a wasteful number, since it uses less digits than its factorization.

1486978506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9348 (or 9342 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 1486978506 is about 38561.3602716502. The cubic root of 1486978506 is about 1141.3921911027.

The spelling of 1486978506 in words is "one billion, four hundred eighty-six million, nine hundred seventy-eight thousand, five hundred six".