40148747351 has 4 divisors (see below), whose sum is σ = 40437587400. Its totient is φ = 39859907304.

The previous prime is 40148747347. The next prime is 40148747371. The reversal of 40148747351 is 15374784104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40148747351 - 2² = 40148747347 is a prime.

It is a super-2 number, since 2×40148747351² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40148747321) 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, 144419816 + ... + 144420093.

It is an arithmetic number, because the mean of its divisors is an integer number (10109396850).

Almost surely, 2^40148747351 is an apocalyptic number.

40148747351 is a deficient number, since it is larger than the sum of its proper divisors (288840049).

40148747351 is a wasteful number, since it uses less digits than its factorization.

40148747351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288840048.

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 40148747351 in words is "forty billion, one hundred forty-eight million, seven hundred forty-seven thousand, three hundred fifty-one".