7140249977 has 4 divisors (see below), whose sum is σ = 8160285696. Its totient is φ = 6120214260.

The previous prime is 7140249967. The next prime is 7140249979. The reversal of 7140249977 is 7799420417.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7799420417 = 31 ⋅251594207.

It is a cyclic number.

It is not a de Polignac number, because 7140249977 - 2¹² = 7140245881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7140249979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510017849 + ... + 510017862.

It is an arithmetic number, because the mean of its divisors is an integer number (2040071424).

Almost surely, 2^7140249977 is an apocalyptic number.

It is an amenable number.

7140249977 is a deficient number, since it is larger than the sum of its proper divisors (1020035719).

7140249977 is a wasteful number, since it uses less digits than its factorization.

7140249977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020035718.

The product of its (nonzero) digits is 889056, while the sum is 50.

The square root of 7140249977 is about 84499.9998639053. Note that the first 3 decimals coincide. The cubic root of 7140249977 is about 1925.6224423972.

The spelling of 7140249977 in words is "seven billion, one hundred forty million, two hundred forty-nine thousand, nine hundred seventy-seven".