7901143690 has 32 divisors (see below), whose sum is σ = 15619132800. Its totient is φ = 2853854400.

The previous prime is 7901143681. The next prime is 7901143697. The reversal of 7901143690 is 963411097.

It is a super-2 number, since 2×7901143690² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7901143697) 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, 224646 + ... + 257425.

It is an arithmetic number, because the mean of its divisors is an integer number (488097900).

Almost surely, 2^7901143690 is an apocalyptic number.

7901143690 is a deficient number, since it is larger than the sum of its proper divisors (7717989110).

7901143690 is a wasteful number, since it uses less digits than its factorization.

7901143690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482238.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 7901143690 is about 88888.3776992245. The cubic root of 7901143690 is about 1991.7278067477.

The spelling of 7901143690 in words is "seven billion, nine hundred one million, one hundred forty-three thousand, six hundred ninety".