6912745740 has 120 divisors (see below), whose sum is σ = 21909599712. Its totient is φ = 1824353280.

The previous prime is 6912745687. The next prime is 6912745771. The reversal of 6912745740 is 475472196.

6912745740 is a `hidden beast` number, since 6 + 9 + 1 + 2 + 74 + 574 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 135145 + ... + 179135.

Almost surely, 2^6912745740 is an apocalyptic number.

6912745740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6912745740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10954799856).

6912745740 is an abundant number, since it is smaller than the sum of its proper divisors (14996853972).

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

6912745740 is a wasteful number, since it uses less digits than its factorization.

6912745740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44109 (or 44098 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 6912745740 is about 83142.9235714020. The cubic root of 6912745740 is about 1904.9497661749.

The spelling of 6912745740 in words is "six billion, nine hundred twelve million, seven hundred forty-five thousand, seven hundred forty".