7001378157 has 16 divisors (see below), whose sum is σ = 9702866880. Its totient is φ = 4485264000.

The previous prime is 7001378147. The next prime is 7001378201. The reversal of 7001378157 is 7518731007.

It is not a de Polignac number, because 7001378157 - 2⁶ = 7001378093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7001378147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172344 + ... + 209057.

It is an arithmetic number, because the mean of its divisors is an integer number (606429180).

Almost surely, 2^7001378157 is an apocalyptic number.

It is an amenable number.

7001378157 is a deficient number, since it is larger than the sum of its proper divisors (2701488723).

7001378157 is a wasteful number, since it uses less digits than its factorization.

7001378157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381644.

The product of its (nonzero) digits is 41160, while the sum is 39.

The square root of 7001378157 is about 83674.2383114421. The cubic root of 7001378157 is about 1913.0567135584.

The spelling of 7001378157 in words is "seven billion, one million, three hundred seventy-eight thousand, one hundred fifty-seven".