10455621387 has 8 divisors (see below), whose sum is σ = 13941398736. Its totient is φ = 6970129152.

The previous prime is 10455621331. The next prime is 10455621391. The reversal of 10455621387 is 78312655401.

It is a happy number.

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

It is not a de Polignac number, because 10455621387 - 2⁷ = 10455621259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10456621387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38403 + ... + 149619.

It is an arithmetic number, because the mean of its divisors is an integer number (1742674842).

Almost surely, 2^10455621387 is an apocalyptic number.

10455621387 is a deficient number, since it is larger than the sum of its proper divisors (3485777349).

10455621387 is a wasteful number, since it uses less digits than its factorization.

10455621387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142557.

The product of its (nonzero) digits is 201600, while the sum is 42.

The spelling of 10455621387 in words is "ten billion, four hundred fifty-five million, six hundred twenty-one thousand, three hundred eighty-seven".