6977512140 has 24 divisors (see below), whose sum is σ = 19537034160. Its totient is φ = 1860669888.

The previous prime is 6977512127. The next prime is 6977512163. The reversal of 6977512140 is 412157796.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6977512092 and 6977512101.

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, 58145875 + ... + 58145994.

It is an arithmetic number, because the mean of its divisors is an integer number (814043090).

Almost surely, 2^6977512140 is an apocalyptic number.

6977512140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6977512140 is an abundant number, since it is smaller than the sum of its proper divisors (12559522020).

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

6977512140 is a wasteful number, since it uses less digits than its factorization.

6977512140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116291881 (or 116291879 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 6977512140 is about 83531.5038772797. The cubic root of 6977512140 is about 1910.8805219831.

The spelling of 6977512140 in words is "six billion, nine hundred seventy-seven million, five hundred twelve thousand, one hundred forty".