7434780137 has 4 divisors (see below), whose sum is σ = 7438097040. Its totient is φ = 7431463236.

The previous prime is 7434780131. The next prime is 7434780149. The reversal of 7434780137 is 7310874347.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 7434780137 - 2⁴ = 7434780121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7434780131) 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, 1655087 + ... + 1659572.

It is an arithmetic number, because the mean of its divisors is an integer number (1859524260).

Almost surely, 2^7434780137 is an apocalyptic number.

It is an amenable number.

7434780137 is a deficient number, since it is larger than the sum of its proper divisors (3316903).

7434780137 is a wasteful number, since it uses less digits than its factorization.

7434780137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3316902.

The product of its (nonzero) digits is 395136, while the sum is 44.

The square root of 7434780137 is about 86225.1711334921. The cubic root of 7434780137 is about 1951.7433576000.

The spelling of 7434780137 in words is "seven billion, four hundred thirty-four million, seven hundred eighty thousand, one hundred thirty-seven".