7464662640 has 120 divisors (see below), whose sum is σ = 25933340160. Its totient is φ = 1921930752.

The previous prime is 7464662599. The next prime is 7464662657. The reversal of 7464662640 is 462664647.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157872 + ... + 199631.

It is an arithmetic number, because the mean of its divisors is an integer number (216111168).

Almost surely, 2^7464662640 is an apocalyptic number.

It is an amenable number.

7464662640 is an abundant number, since it is smaller than the sum of its proper divisors (18468677520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7464662640 is a wasteful number, since it uses less digits than its factorization.

7464662640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357551 (or 357542 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 45.

The square root of 7464662640 is about 86398.2791495294. The cubic root of 7464662640 is about 1954.3547332687.

The spelling of 7464662640 in words is "seven billion, four hundred sixty-four million, six hundred sixty-two thousand, six hundred forty".