7640770142 has 8 divisors (see below), whose sum is σ = 11465467056. Its totient is φ = 3818947792.

The previous prime is 7640770141. The next prime is 7640770153. The reversal of 7640770142 is 2410770467.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7640770096 and 7640770105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7640770141) 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, 711983 + ... + 722634.

It is an arithmetic number, because the mean of its divisors is an integer number (1433183382).

Almost surely, 2^7640770142 is an apocalyptic number.

7640770142 is a deficient number, since it is larger than the sum of its proper divisors (3824696914).

7640770142 is a wasteful number, since it uses less digits than its factorization.

7640770142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437282.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 7640770142 is about 87411.4989117565. The cubic root of 7640770142 is about 1969.6045778026.

The spelling of 7640770142 in words is "seven billion, six hundred forty million, seven hundred seventy thousand, one hundred forty-two".